# Mattermost vs Slack Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Slack excels in user experience, with many praising its **intuitive design** and seamless integration with other platforms. Users appreciate how it helps organize projects and facilitates communication, making it particularly effective for freelancers and teams working on temporary projects.
- **Users say** that Mattermost stands out for its **security and flexibility** , especially for organizations that prioritize data control through self-hosting. Reviewers highlight its end-to-end encryption and the ability to share various types of content securely, making it a reliable choice for teams concerned about data privacy.
- **According to verified reviews** , Slack's implementation process is notably quick and user-friendly, with many users mentioning the **intuitive onboarding wizard** that simplifies setup. In contrast, Mattermost users have reported some challenges with setup, indicating that it may require more time and effort to get started.
- **Reviewers mention** that Slack's support quality is highly rated, with users appreciating the responsiveness and helpfulness of the support team. Mattermost, while still providing decent support, has received slightly lower ratings in this area, suggesting that users may not always find the assistance they need as readily.
- **G2 reviewers highlight** that Slack's mobile application is particularly well-received, allowing users to stay connected and manage tasks on the go. Mattermost's mobile experience, while functional, does not seem to match the level of satisfaction reported by Slack users, indicating a potential area for improvement.
- **Users report** that Slack's overall performance and satisfaction metrics are significantly higher, making it a preferred choice for many small businesses. Mattermost, while favored in certain mid-market segments, faces challenges in competing with Slack's extensive user base and positive feedback, particularly in terms of overall usability and feature richness.



---
## Frequently Asked Questions

### What is the difference between Slack vs Mattermost?

Slack stands out for its higher G2 rating, greater ease of setup, and stronger reviewer-cited strengths in integrations and team collaboration, while Mattermost is favored for security and self-hosting flexibility.

| [Slack](https://www.g2.com/products/slack/reviews) | [Mattermost](https://www.g2.com/products/mattermost/reviews) |
| --- | --- |
| 4.5/5 (39,276 reviews) | 4.3/5 (369 reviews) |
| Mid-Market | Mid-Market |
| 9.2 | 8.1 |
| 8.8 | 8.2 |
| Integrations (2,145 all-time mentions) | Security (10 all-time mentions) |



### How do the pricing models of Slack and Mattermost compare?

Slack is rated higher for value with a stronger Price/Cost satisfaction score than Mattermost.

- **Slack:** Reviewers frequently cite Slack's integrations and automations as delivering strong value, though some mention the per-user cost can add up for larger teams.
- **Mattermost:** Reviewers highlight Mattermost's cost savings at scale, especially for self-hosted deployments, and its strong ROI for organizations prioritizing data control.



### What are the best alternatives to Slack and Mattermost?

The top three alternatives to Slack and Mattermost are ClickUp, monday AI Work Platform, and Microsoft Teams.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Slack](https://www.g2.com/products/slack/reviews) | 4.5/5 (39,276 reviews) | Mid-Market | Reviewers note strong integrations and automations, but mention pricing can be high for scaling teams. | Integrations (2,145 all-time mentions) |
| [Mattermost](https://www.g2.com/products/mattermost/reviews) | 4.3/5 (369 reviews) | Mid-Market | Reviewers highlight cost savings for self-hosted deployments and strong ROI for privacy-focused organizations. | Security (10 all-time mentions) |
| [ClickUp](https://www.g2.com/products/clickup/reviews) | 4.6/5 (13,726 reviews) | Small-Business | — | Task management and customization |
| [monday AI Work Platform](https://www.g2.com/products/monday-com/reviews) | 4.7/5 (17,145 reviews) | Small-Business | — | Automation and workflow flexibility |
| [Microsoft Teams](https://www.g2.com/products/microsoft-teams/reviews) | 4.4/5 (19,264 reviews) | Enterprise | — | Integration with Microsoft 365 ecosystem |



### Which Work Management features should I prioritize when comparing Slack and Mattermost?

Buyers should prioritize integrations, security, ease of setup, notifications, and customization when comparing Slack and Mattermost.

- **Integrations:** Slack: 2,145 all-time mentions; Mattermost: 11 all-time mentions.
- **Security:** Mattermost: 10 all-time mentions; Slack: not a top-cited theme.
- **Ease of Setup:** Slack: 9.2; Mattermost: 8.1.
- **Notifications:** Slack: 1,114 all-time mentions (issues); Mattermost: recent reviews cite inconsistent notifications.
- **Customization:** Mattermost: 8 all-time mentions; Slack: not a top-cited theme.



### What are the pros and cons of Slack vs Mattermost?

Slack's headline strength is integrations and ease of use, while Mattermost's is security and self-hosting flexibility.

- **Slack strengths:** Integrations (2,145 all-time mentions), ease of use (3,481), team collaboration (3,029), intuitive interface (1,368), organization (1,251).
- **Slack trade-offs:** Notification issues (1,114 all-time mentions), potential for information overload, pricing concerns for scaling teams.
- **Mattermost strengths:** Security (10 all-time mentions), self-hosting and data control, customization (8), team collaboration (10), file sharing (6).
- **Mattermost trade-offs:** Not as intuitive (8 all-time mentions), performance issues (8), integration limitations (7), steeper learning curve (7), less polished UI compared to Slack.



### Is Slack or Mattermost better for small businesses?

ClickUp and monday AI Work Platform are the top alternatives for small businesses, but between Slack and Mattermost, both are most used by mid-market companies.

- **Slack:** Largest segment is Mid-Market; reviewers highlight ease of use, fast onboarding, and strong integrations, but note pricing can be a concern for small businesses.
- **Mattermost:** Largest segment is Mid-Market; reviewers cite cost savings for self-hosted deployments and strong security, but mention a steeper learning curve and more technical setup.



### Which Work Management platform has better integrations?

Slack is favored by reviewers for integrations, with a much higher volume of integration mentions and broader third-party support than Mattermost.

- **Slack:** Jira (996 all-time mentions), Basecamp (47), and Salesforce are frequently cited integrations, with more than 2,100 G2 reviews mentioning integrations overall.
- **Mattermost:** Jira (9 all-time mentions), Zabbix, and GitLab are cited in recent reviews, but integration mentions are much lower in volume.



### How do Slack and Mattermost compare on customer support?

Slack and Mattermost are rated within 0.6 points on Quality of Support, with Slack at 8.8 and Mattermost at 8.2, indicating near parity.

- **Slack:** Reviewers frequently describe support as responsive and helpful, with onboarding and troubleshooting praised in recent reviews.
- **Mattermost:** Reviewers note reliable support, especially for technical and self-hosted deployments, but mention that advanced configuration may require more technical assistance.



### Which is easier to implement, Slack or Mattermost?

Slack is rated higher for Ease of Setup, with a 1.1-point advantage over Mattermost, making it easier to implement according to reviewers.

- **Slack:** Reviewers consistently highlight fast onboarding, intuitive setup, and minimal technical barriers, with a 9.2 Ease of Setup score.
- **Mattermost:** Reviewers note that setup is straightforward for technical teams but can require more effort for self-hosted or customized deployments, reflected in its 8.1 Ease of Setup score.



### Which product has better Notifications?

Slack is more frequently cited for notification issues, but both Slack and Mattermost receive reviewer feedback on notifications.

- **Slack:** Notification issues are mentioned in 1,114 all-time reviews, with reviewers noting both the power and potential overwhelm of Slack's notification system.
- **Mattermost:** Recent reviews cite inconsistent or delayed notifications, especially on mobile and self-hosted deployments, but all-time mention counts are below the publish floor.



| | Mattermost | Slack | 
|---|---|---|
| **Star Rating** | 4.3 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 369 | 39,852 | 

---
## Top Pros & Cons

### Mattermost

Pros:
- Ease of Use (15 reviews)
- Features (14 reviews)

Cons:
- Not Intuitive (8 reviews)
- Performance Issues (8 reviews)

### Slack

Pros:
- Ease of Use (3483 reviews)
- Team Collaboration (3031 reviews)

Cons:
- Notification Issues (1114 reviews)
- Missing Features (905 reviews)

---
## Ratings Comparison
| Rating | Mattermost | Slack | 
|---|---|---|
  | **Meets Requirements** | 8.7 (301 reviews) | 9.2 (31806 reviews) | 
  | **Ease of Use** | 8.8 (307 reviews) | 9.2 (32992 reviews) | 
  | **Ease of Setup** | 8.1 (97 reviews) | 9.1 (9275 reviews) | 
  | **Ease of Admin** | 8.3 (69 reviews) | 8.9 (5495 reviews) | 
  | **Quality of Support** | 8.2 (232 reviews) | 8.8 (22156 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.0 (58 reviews) | 9.1 (4980 reviews) | 
  | **Product Direction (% positive)** | 8.4 (296 reviews) | 8.7 (30988 reviews) | 

---
## Pricing

### Mattermost

#### Entry-Level Pricing

Plan: Starter

Price: $0.00

Description: Increased productivity for small teams

Key Features:
- Unlimited 1:1 and group messaging
- Unlimited users, channels, teams
- Unlimited boards

[Browse all 3 editions](https://www.g2.com/products/mattermost/pricing)

#### Free Trial

Yes

### Slack

#### Entry-Level Pricing

Plan: Free

Price: $0.00

Description: For teams wanting to try out Slack for an unlimited period of time



Key Features:
- Searchable message archives, up to 10k of your team’s most recent messages
- 10 apps or service integrations
- Native apps for iOS, Android, Mac & Windows Desktop

[Browse all 4 editions](https://www.g2.com/products/slack/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Artificial Intelligence

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Tagging** | Not enough data | Not enough data | 
| **Natural Language Processing** | Not enough data | Not enough data | 
| **Data Extraction** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 
| **Predictive Analytics** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Speech Recognition** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Data Storage Management** | Not enough data | Not enough data | 
| **Virtual Personal Assistant (VPA)** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **For eCommerce** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Trend Analysis** | Not enough data | Not enough data | 
| **Machine Learning** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Performance Metrics** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Mobile App** | Not enough data | Not enough data | 
| **Multiple Data Sources** | Not enough data | Not enough data | 
| **For Sales Teams/Organizations** | Not enough data | Not enough data | 
| **Sentiment Analysis** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 

### Collaboration & Productivity

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **To-Do List** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Brainstorming** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Real Time Editing** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Task Progress Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 

### Team Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Communication

| Feature | Mattermost | Slack | 
|---|---|---|
| **Status Updates** | Not enough data | Not enough data | 
| **Instant Messaging** | Not enough data | Not enough data | 
| **Activity Feed** | Not enough data | Not enough data | 
| **Notifications** | Not enough data | Not enough data | 
| **Comments and Voting** | Not enough data | Not enough data | 
| **Discussions** | Not enough data | Not enough data | 
| **User Directory** | Not enough data | Not enough data | 
| **Online Status of Coworkers** | Not enough data | Not enough data | 

#### Content Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **File Sharing** | Not enough data | Not enough data | 
| **Document Collaboration** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Knowledge Base** | Not enough data | Not enough data | 
| **Surveys** | Not enough data | Not enough data | 

#### Productivity Tools

| Feature | Mattermost | Slack | 
|---|---|---|
| **Task Management** | Not enough data | Not enough data | 
| **Calendar** | Not enough data | Not enough data | 
| **Search** | Not enough data | Not enough data | 
| **Mobile** | Not enough data | Not enough data | 
| **Multi-Language Support** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 

#### Administration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Moderation** | Not enough data | Not enough data | 
| **User, Role, and Access Management** | Not enough data | Not enough data | 
| **Performance and Reliability** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **API** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Audio Calls** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Calendar Sync** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

### Business Instant Messaging

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | 6.9/10 | 223 |
| **Slack** | 8.2/10 | 16158 |

#### Business Instant Messaging

| Feature | Mattermost | Slack | 
|---|---|---|
| **File Sharing** | 8.7 (196 reviews) | 9.1 (14019 reviews) | 
| **Notifications** | 8.6 (203 reviews) | 9.0 (14564 reviews) | 
| **Search** | 8.0 (192 reviews) | 8.6 (13842 reviews) | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | 7.0 (24 reviews) | 

#### Business Instant Messaging 

| Feature | Mattermost | Slack | 
|---|---|---|
| **Audio Conferencing** | 7.8 (118 reviews) | 8.5 (10268 reviews) | 
| **Video Conferencing** | 7.9 (110 reviews) | 8.1 (9601 reviews) | 
| **Two-Way Audio & Video** | Not enough data | Not enough data | 
| **Conferencing** | Not enough data | Not enough data | 

#### Business Instant Messaging

| Feature | Mattermost | Slack | 
|---|---|---|
| **Mobile Application** | 8.0 (178 reviews) | 9.1 (13707 reviews) | 
| **Web Application** | 8.9 (188 reviews) | 9.2 (13300 reviews) | 
| **Third-Party Integrations** | 8.3 (167 reviews) | 9.0 (11882 reviews) | 
| **Active Directory Integration** | Not enough data | Not enough data | 

#### Generative AI - Business Instant Messaging

| Feature | Mattermost | Slack | 
|---|---|---|
| **Text Summarization** | 4.8 (14 reviews) | 7.6 (1493 reviews) | 

#### AI - Business Instant Messaging

| Feature | Mattermost | Slack | 
|---|---|---|
| **AI Powered Search** | 5.1 (14 reviews) | 7.5 (1467 reviews) | 
| **Smart Notifications** | 6.0 (14 reviews) | 7.9 (1477 reviews) | 
| **AI Powered Language Translation** | 4.4 (13 reviews) | 7.4 (1448 reviews) | 
| **Content Generation** | 5.5 (13 reviews) | 7.4 (1448 reviews) | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Business Instant Messaging

| Feature | Mattermost | Slack | 
|---|---|---|
| **Cross-system Integration** | 5.7 (10 reviews) | 7.7 (880 reviews) | 
| **Natural Language Interaction** | 5.3 (10 reviews) | 7.7 (862 reviews) | 
| **Multi-Language** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Group Messaging** | Not enough data | 9.4 (9 reviews) | 
| **Bulk Send** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Rich Text Editor** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Transcripts/Chat History** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 
| **Message Recall** | Not enough data | Not enough data | 
| **Canned Responses** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Workflow Configuration** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **Read Receipts** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Real-Time Chat** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Broadcast Messaging** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Employee Database** | Not enough data | Not enough data | 
| **One-to-One Messaging** | Not enough data | Not enough data | 
| **Event Calendar** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Real-Time Updates** | Not enough data | Not enough data | 
| **Employee Photos** | Not enough data | Not enough data | 
| **Mobile Alerts** | Not enough data | Not enough data | 
| **Engagement Tracking** | Not enough data | Not enough data | 
| **Blogs** | Not enough data | Not enough data | 

### Workflow Management

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | 8.2/10 | 21 |
| **Slack** | 8.4/10 | 934 |

#### Setup

| Feature | Mattermost | Slack | 
|---|---|---|
| **Activities** | 8.5 (20 reviews) | 9.1 (684 reviews) | 
| **Flows** | 8.8 (20 reviews) | 8.9 (680 reviews) | 
| **Dependencies** | 7.9 (20 reviews) | 8.7 (651 reviews) | 
| **Notifications** | 8.7 (21 reviews) | 8.9 (698 reviews) | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Business Process Automation** | Not enough data | Not enough data | 

#### Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Updates** | 8.7 (19 reviews) | 9.0 (668 reviews) | 
| **Audit Trail** | 8.0 (19 reviews) | 8.7 (644 reviews) | 
| **Integration** | 8.1 (20 reviews) | 8.9 (670 reviews) | 

#### Generative AI

| Feature | Mattermost | Slack | 
|---|---|---|
| **AI Text Generation** | 6.9 (12 reviews) | 7.7 (557 reviews) | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Workflow Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.7 (276 reviews) | 
| **Multi-step Planning** | Not enough data | 7.9 (272 reviews) | 
| **Cross-system Integration** | Not enough data | 8.1 (281 reviews) | 
| **Adaptive Learning** | Not enough data | 7.9 (278 reviews) | 
| **Natural Language Interaction** | Not enough data | 7.9 (277 reviews) | 
| **Proactive Assistance** | Not enough data | 7.9 (278 reviews) | 
| **Decision Making** | Not enough data | 8.0 (281 reviews) | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Drag & Drop** | Not enough data | Not enough data | 
| **Template Management** | Not enough data | Not enough data | 
| **Approval Process Control** | Not enough data | Not enough data | 
| **Customizable Dashboard** | Not enough data | Not enough data | 
| **Rules-Based Workflow** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Workflow Configuration** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Forms Management** | Not enough data | Not enough data | 
| **No-Code** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Graphical Workflow Editor** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Compliance Tracking** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Project Workflow** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 

### Q&A Platforms

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 8.9/10 | 423 |

#### Account Options

| Feature | Mattermost | Slack | 
|---|---|---|
| **Single Sign-On (SSO)** | Not enough data | 9.2 (289 reviews) | 
| **Social Login** | Not enough data | 8.4 (279 reviews) | 
| **Reputation System** | Not enough data | 8.6 (269 reviews) | 
| **Topic Subscription** | Not enough data | 8.7 (276 reviews) | 
| **Bookmarking** | Not enough data | 8.9 (286 reviews) | 
| **History** | Not enough data | 8.9 (282 reviews) | 

#### Q&A Tools

| Feature | Mattermost | Slack | 
|---|---|---|
| **Tags** | Not enough data | 9.1 (288 reviews) | 
| **Commenting System** | Not enough data | 9.1 (281 reviews) | 
| **Notifications** | Not enough data | 9.1 (290 reviews) | 
| **Voting** | Not enough data | 8.7 (273 reviews) | 
| **Integrations** | Not enough data | 9.1 (285 reviews) | 
| **Knowledge Integrations** | Not enough data | 8.9 (273 reviews) | 
| **Embedding** | Not enough data | 8.6 (267 reviews) | 
| **Formatting** | Not enough data | 8.9 (271 reviews) | 
| **Analytics** | Not enough data | 8.5 (266 reviews) | 

### Knowledge Base

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 8.4/10 | 519 |

#### Knowledge Pages

| Feature | Mattermost | Slack | 
|---|---|---|
| **Templates** | Not enough data | 8.4 (343 reviews) | 
| **In-Content Feedback** | Not enough data | 8.3 (343 reviews) | 
| **Versioning and Version History** | Not enough data | 8.1 (331 reviews) | 
| **Decision Trees** | Not enough data | 8.1 (328 reviews) | 
| **Duplicate Detection** | Not enough data | 7.9 (323 reviews) | 
| **Content Editor** | Not enough data | 8.3 (328 reviews) | 
| **WYSIWYG Editor** | Not enough data | Not enough data | 
| **Rich Text Editor** | Not enough data | Not enough data | 
| **Drag & Drop Editor** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Pre-built Templates** | Not enough data | Not enough data | 

#### Knowledge Dissemination

| Feature | Mattermost | Slack | 
|---|---|---|
| **Page Analytics** | Not enough data | 8.2 (319 reviews) | 
| **Permissions** | Not enough data | 8.7 (327 reviews) | 
| **Knowledge Sharing** | Not enough data | 9.0 (338 reviews) | 
| **Notifications** | Not enough data | 8.9 (336 reviews) | 
| **Advanced Search** | Not enough data | 8.3 (330 reviews) | 
| **Browser Extension** | Not enough data | 8.2 (317 reviews) | 
| **Organization** | Not enough data | 8.7 (334 reviews) | 
| **Other Integrations** | Not enough data | 8.6 (325 reviews) | 
| **Knowledge Integrations** | Not enough data | 8.6 (313 reviews) | 
| **Full Text Search** | Not enough data | Not enough data | 
| **Web Notifications** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Website Integration** | Not enough data | Not enough data | 
| **Social Media Integration** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 

#### Agentic AI - Knowledge Base

| Feature | Mattermost | Slack | 
|---|---|---|
| **Adaptive Learning** | Not enough data | 7.9 (196 reviews) | 
| **Natural Language Interaction** | Not enough data | 7.9 (198 reviews) | 
| **Proactive Assistance** | Not enough data | 7.8 (196 reviews) | 
| **Multi-Language** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Search/Filter** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Content Publishing Options** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Content Library** | Not enough data | Not enough data | 
| **Document Classification** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **SEO Management** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Self Service Portal** | Not enough data | Not enough data | 
| **Widgets** | Not enough data | Not enough data | 
| **Mobile Interface** | Not enough data | Not enough data | 
| **Catalog Management** | Not enough data | Not enough data | 
| **Online Forums** | Not enough data | Not enough data | 
| **Email Alerts** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | 10.0 (5 reviews) | 
| **Mobile Alerts** | Not enough data | Not enough data | 
| **Dashboard** | Not enough data | Not enough data | 
| **Feedback Management** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Knowledge Management** | Not enough data | Not enough data | 
| **Wiki** | Not enough data | Not enough data | 
| **Text Editing** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Knowledge Base Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 

### Incident Management

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Monitoring

| Feature | Mattermost | Slack | 
|---|---|---|
| **Constant Monitoring** | Not enough data | Not enough data | 
| **Timely Alerts** | Not enough data | Not enough data | 
| **TIcket Accuracy** | Not enough data | Not enough data | 
| **AI Monitoring** | Not enough data | Not enough data | 
| **Mobile Alerts** | Not enough data | Not enough data | 
| **Email Alerts** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 

#### Management Tools

| Feature | Mattermost | Slack | 
|---|---|---|
| **Ticket Assignment** | Not enough data | Not enough data | 
| **Standardization** | Not enough data | Not enough data | 
| **Lifecycle Visualization** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Mattermost | Slack | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Incident Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Forms Management** | Not enough data | Not enough data | 
| **Safety Incident Management** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **OSHA Compliance** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Disaster Recovery** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Corrective and Preventive Actions (CAPA)** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Issue Management** | Not enough data | Not enough data | 
| **Communications Management** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **IT Incident Management** | Not enough data | Not enough data | 
| **Audit Management** | Not enough data | Not enough data | 
| **Event Logs** | Not enough data | Not enough data | 
| **Risk Analysis** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Risk Assessment** | Not enough data | Not enough data | 
| **Incident Reporting** | Not enough data | Not enough data | 
| **Self Service Portal** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Ticket Management** | Not enough data | Not enough data | 
| **Service Level Agreement (SLA) Management** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **On Call Scheduling** | Not enough data | Not enough data | 
| **Investigation Management** | Not enough data | Not enough data | 
| **Maintenance Scheduling** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 

### Unified Workspaces

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 8.3/10 | 1056 |

#### Login Options 

| Feature | Mattermost | Slack | 
|---|---|---|
| **Single Sign-On (SSO)** | Not enough data | 9.1 (777 reviews) | 
| **Password Saver** | Not enough data | 8.5 (736 reviews) | 

#### Productivity

| Feature | Mattermost | Slack | 
|---|---|---|
| **Email Client** | Not enough data | 8.0 (724 reviews) | 
| **Split Screen** | Not enough data | 8.3 (735 reviews) | 
| **Activity Feed** | Not enough data | 8.6 (741 reviews) | 
| **Virtual Assistant** | Not enough data | 7.9 (717 reviews) | 
| **Analytics and Reporting** | Not enough data | 7.9 (707 reviews) | 

#### Customization 

| Feature | Mattermost | Slack | 
|---|---|---|
| **Custom Workflows** | 8.9 (19 reviews) | 8.6 (737 reviews) | 
| **Multiple Workspaces** | Not enough data | 9.0 (758 reviews) | 
| **Custom Application Integration** | Not enough data | 8.7 (716 reviews) | 

#### Agentic AI - Unified Workspaces

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.5 (402 reviews) | 
| **Adaptive Learning** | Not enough data | 7.6 (400 reviews) | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Remote Access/Control** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Time Zone Tracking** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Projections** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Softphone** | Not enough data | Not enough data | 
| **Employee Activity Monitoring** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Project Time Tracking** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Remote Support** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | 
| **Two-Way Audio & Video** | Not enough data | Not enough data | 
| **Electronic Signature** | Not enough data | Not enough data | 
| **Video Chat** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 

### Enterprise Search Software

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 9.0/10 | 149 |

#### Compatibility

| Feature | Mattermost | Slack | 
|---|---|---|
| **Federated Search** | Not enough data | 9.0 (97 reviews) | 
| **File Types** | Not enough data | 9.0 (100 reviews) | 
| **Global Language Support** | Not enough data | 8.9 (89 reviews) | 

#### Agentic AI - Enterprise Search Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 8.4 (57 reviews) | 
| **Multi-step Planning** | Not enough data | 8.3 (54 reviews) | 
| **Cross-system Integration** | Not enough data | 8.9 (55 reviews) | 
| **Adaptive Learning** | Not enough data | 8.5 (55 reviews) | 
| **Proactive Assistance** | Not enough data | 8.5 (55 reviews) | 
| **Decision Making** | Not enough data | 8.6 (54 reviews) | 
| **AI/Machine Learning** | Not enough data | Not enough data | 

#### Search Queries

| Feature | Mattermost | Slack | 
|---|---|---|
| **Typo Tolerance** | Not enough data | 8.8 (93 reviews) | 
| **Faceted Search** | Not enough data | 9.0 (95 reviews) | 
| **Synonyms** | Not enough data | 8.7 (88 reviews) | 
| **Highlighting** | Not enough data | 9.1 (90 reviews) | 
| **Natural Language** | Not enough data | 8.9 (89 reviews) | 
| **Full Text Search** | Not enough data | Not enough data | 

#### AI powered search - Enterprise Search Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Generative RAG (Retrieval augmented generation)** | Not enough data | 9.0 (21 reviews) | 
| **Relevance Tuning** | Not enough data | 9.1 (21 reviews) | 
| **NLP & Semantic search** | Not enough data | 9.0 (21 reviews) | 
| **Fuzzy Search** | Not enough data | Not enough data | 

#### Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Personalization** | Not enough data | 8.8 (88 reviews) | 
| **Search Analytics** | Not enough data | 8.9 (88 reviews) | 
| **Integrations** | Not enough data | 9.2 (97 reviews) | 
| **Visual Analytics** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 

#### Compatibility - Enterprise Search Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **File Types** | Not enough data | 9.3 (23 reviews) | 
| **Federated Search** | Not enough data | 9.2 (21 reviews) | 
| **Global Language Support** | Not enough data | 9.2 (22 reviews) | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Sentiment Analysis** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Behavior Tracking** | Not enough data | Not enough data | 
| **Data Storage Management** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Multiple Data Sources** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Forecasting** | Not enough data | Not enough data | 
| **Metadata Management** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Text Analysis** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Indexing** | Not enough data | Not enough data | 
| **Autocomplete** | Not enough data | Not enough data | 
| **For eCommerce** | Not enough data | Not enough data | 
| **Customer Database** | Not enough data | Not enough data | 
| **Catalog Management** | Not enough data | Not enough data | 
| **Query Suggestions** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Data Capture and Transfer** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **For Enterprises** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 

#### Functionality - Enterprise Search Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Personalization** | Not enough data | 9.2 (23 reviews) | 
| **Search Analytics** | Not enough data | 9.0 (21 reviews) | 
| **Integrations** | Not enough data | 9.4 (24 reviews) | 

#### Search Queries - Enterprise Search Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Highlighting** | Not enough data | 9.4 (21 reviews) | 
| **Faceted Search** | Not enough data | 9.1 (20 reviews) | 
| **Typo Tolerance** | Not enough data | 9.0 (22 reviews) | 
| **Synonyms** | Not enough data | 9.3 (22 reviews) | 

### Work Management

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 8.5/10 | 3311 |

#### Automation

| Feature | Mattermost | Slack | 
|---|---|---|
| **Workflows** | Not enough data | 8.9 (1276 reviews) | 
| **Customization** | Not enough data | 8.8 (1231 reviews) | 
| **Data repository** | Not enough data | 8.5 (1202 reviews) | 

#### Administration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Permissions** | Not enough data | 8.8 (1216 reviews) | 
| **Procedures** | Not enough data | 8.6 (1135 reviews) | 
| **Remote Work** | Not enough data | 9.4 (1445 reviews) | 

#### Project management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Task Prioritization** | Not enough data | 8.7 (1176 reviews) | 
| **Dependencies** | Not enough data | 8.5 (1116 reviews) | 
| **Planning** | Not enough data | 8.6 (1140 reviews) | 
| **Views** | Not enough data | 8.5 (1130 reviews) | 
| **Scheduling** | Not enough data | 8.6 (1142 reviews) | 
| **Critical Path** | Not enough data | 8.3 (1094 reviews) | 
| **Dashboards** | Not enough data | 8.3 (1124 reviews) | 

#### Workload

| Feature | Mattermost | Slack | 
|---|---|---|
| **Resource Allocation** | Not enough data | 8.4 (1076 reviews) | 
| **Workspace** | Not enough data | 8.8 (1191 reviews) | 
| **Configuration** | Not enough data | 8.6 (1092 reviews) | 
| **Insights** | Not enough data | 8.5 (1098 reviews) | 

#### Communication & Collaboration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Communication Channels** | Not enough data | 9.4 (2162 reviews) | 
| **Document Management** | Not enough data | 9.1 (1440 reviews) | 
| **Collaboration** | Not enough data | 9.4 (1742 reviews) | 

#### Cost Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Project Budgeting** | Not enough data | 8.0 (1068 reviews) | 
| **Time & Expense** | Not enough data | 8.2 (1071 reviews) | 
| **Profitability** | Not enough data | 8.1 (1063 reviews) | 

#### Integration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Front Office** | Not enough data | 8.8 (1413 reviews) | 
| **Back Office** | Not enough data | 8.4 (1091 reviews) | 
| **External data** | Not enough data | 8.4 (1116 reviews) | 

#### Generative AI

| Feature | Mattermost | Slack | 
|---|---|---|
| **AI Text Generation** | Not enough data | 7.5 (1040 reviews) | 
| **AI Text Summarization** | Not enough data | 7.7 (1067 reviews) | 

#### Agentic AI - Work Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.7 (527 reviews) | 
| **Multi-step Planning** | Not enough data | 7.8 (513 reviews) | 
| **Cross-system Integration** | Not enough data | 8.3 (570 reviews) | 
| **Natural Language Interaction** | Not enough data | 7.9 (530 reviews) | 

### Project Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 8.5/10 | 1726 |

#### Communication

| Feature | Mattermost | Slack | 
|---|---|---|
| **Chat** | Not enough data | 9.5 (1229 reviews) | 
| **Discussions** | Not enough data | 9.4 (1174 reviews) | 
| **External** | Not enough data | 8.9 (1066 reviews) | 
| **Feedback** | Not enough data | 8.9 (1038 reviews) | 
| **Announcements** | Not enough data | 9.1 (1053 reviews) | 

#### Content & Documents

| Feature | Mattermost | Slack | 
|---|---|---|
| **File Sharing** | Not enough data | 9.2 (1128 reviews) | 
| **Notes** | Not enough data | 8.9 (1046 reviews) | 
| **Search** | Not enough data | 8.7 (1082 reviews) | 
| **Versioning** | Not enough data | 8.1 (1001 reviews) | 

#### Controls

| Feature | Mattermost | Slack | 
|---|---|---|
| **Custom Views** | Not enough data | 8.3 (987 reviews) | 
| **Followers** | Not enough data | 8.1 (982 reviews) | 
| **User Management** | Not enough data | 8.7 (997 reviews) | 
| **Calendars** | Not enough data | 8.4 (1006 reviews) | 
| **Public Sharing** | Not enough data | 8.2 (974 reviews) | 

#### Project Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Task Management** | Not enough data | 8.4 (1000 reviews) | 
| **Planning** | Not enough data | 8.3 (975 reviews) | 
| **Visibility** | Not enough data | 8.5 (983 reviews) | 
| **Integration** | Not enough data | 8.7 (1000 reviews) | 

#### Remote Collaboration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Alignment** | Not enough data | 9.0 (999 reviews) | 
| **Accountability** | Not enough data | 8.7 (969 reviews) | 
| **Connectivity** | Not enough data | 9.0 (992 reviews) | 
| **Offline Mode** | Not enough data | 7.9 (952 reviews) | 

#### Generative AI

| Feature | Mattermost | Slack | 
|---|---|---|
| **AI Text Generation** | Not enough data | 7.3 (926 reviews) | 
| **AI Text Summarization** | Not enough data | 7.4 (930 reviews) | 

#### Agentic AI - Project Collaboration

| Feature | Mattermost | Slack | 
|---|---|---|
| **Multi-step Planning** | Not enough data | 7.5 (436 reviews) | 
| **Cross-system Integration** | Not enough data | 7.7 (440 reviews) | 

### Audio Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 7.6/10 | 351 |

#### Agentic AI - Audio Conferencing

| Feature | Mattermost | Slack | 
|---|---|---|
| **Proactive Assistance** | Not enough data | 7.5 (278 reviews) | 
| **Decision Making** | Not enough data | 7.7 (279 reviews) | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Screen Sharing** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Custom Greetings/Messages** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **International Calling** | Not enough data | Not enough data | 
| **Virtual Voicemail** | Not enough data | Not enough data | 
| **Call Scheduling** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Call Conferencing** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Two Way Audio & Video** | Not enough data | Not enough data | 
| **Audio/Video Recording** | Not enough data | Not enough data | 
| **Real-Time Chat** | Not enough data | Not enough data | 
| **Audio Calls** | Not enough data | Not enough data | 

### Employee Intranet

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Agentic AI - Employee Intranet

| Feature | Mattermost | Slack | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Personalization** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Activity/News Feed** | Not enough data | Not enough data | 
| **Employee Communities** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Employee Portal** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 
| **Engagement Tracking** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Active Directory Integration** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Wiki** | Not enough data | Not enough data | 
| **Event Calendar** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Org Chart Creation** | Not enough data | Not enough data | 
| **Employee Database** | Not enough data | Not enough data | 
| **Employee Profiles** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Blogs** | Not enough data | Not enough data | 
| **Policy Management** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Content Library** | Not enough data | Not enough data | 
| **Knowledge Base Management** | Not enough data | Not enough data | 
| **Private Network** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Employee Onboarding** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Customizable Forms** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 

### AI Note-Taking Software

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | 9.2/10 | 35 |

#### Action Item Detection - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Action Item extraction** | Not enough data | 8.9 (12 reviews) | 
| **Summary Generation** | Not enough data | 9.2 (13 reviews) | 

#### Automatic Transcription - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Speech-to-text Transcription** | Not enough data | 9.5 (14 reviews) | 

#### Collaboration & Sharing - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Team-based Access** | Not enough data | 9.4 (15 reviews) | 

#### Language & Accent Support - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Multi-Language and Accent Support** | Not enough data | 9.2 (13 reviews) | 

#### Multi-Platform Integration - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Integrations** | Not enough data | 9.1 (15 reviews) | 

#### Privacy & Security Controls - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Access Control** | Not enough data | 9.1 (16 reviews) | 

#### Searchable Note Archives - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Semantic Search** | Not enough data | 8.8 (13 reviews) | 

#### Speaker Identification - AI Note-taking Software

| Feature | Mattermost | Slack | 
|---|---|---|
| **Speaker Recognition** | Not enough data | 9.2 (14 reviews) | 

### Enterprise AI Chatbots

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### AI & Conversational Intelligence - Enterprise AI Chatbots

| Feature | Mattermost | Slack | 
|---|---|---|
| **Retrieval-Augmented Generation (RAG)** | Not enough data | Not enough data | 
| **Natural Language Understanding** | Not enough data | Not enough data | 
| **Multi-Turn Conversations** | Not enough data | Not enough data | 
| **Contextual Response Generation** | Not enough data | Not enough data | 

#### Knowledge & Data Integration - Enterprise AI Chatbots

| Feature | Mattermost | Slack | 
|---|---|---|
| **Real-Time Data Retrieval** | Not enough data | Not enough data | 
| **API & Custom Data Connectors** | Not enough data | Not enough data | 
| **Knowledge Base Integrations** | Not enough data | Not enough data | 
| **CRM & ERP Integrations** | Not enough data | Not enough data | 

#### Security, Governance & Compliance - Enterprise AI Chatbots

| Feature | Mattermost | Slack | 
|---|---|---|
| **Audit Logging** | Not enough data | Not enough data | 
| **Role-Based Access Controls** | Not enough data | Not enough data | 
| **Data Residency Controls** | Not enough data | Not enough data | 
| **Response Guardrails** | Not enough data | Not enough data | 

#### Administration & Deployment - Enterprise AI Chatbots

| Feature | Mattermost | Slack | 
|---|---|---|
| **Workflow Automation** | Not enough data | Not enough data | 
| **Escalation Workflows** | Not enough data | Not enough data | 
| **Conversation Analytics** | Not enough data | Not enough data | 
| **Multi-Channel Deployment** | Not enough data | Not enough data | 

### Product Management

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | 8.9/10 | 20 |
| **Slack** | N/A | N/A |

#### Communication

| Feature | Mattermost | Slack | 
|---|---|---|
| **Wiki Documentation** | 8.5 (20 reviews) | Not enough data | 
| **Community Forum** | 8.8 (20 reviews) | Not enough data | 
| **Customer Ideation** | 8.7 (19 reviews) | Not enough data | 
| **NPS of Customers** | Not enough data | Not enough data | 

#### Planning

| Feature | Mattermost | Slack | 
|---|---|---|
| **Work Capacity** | 9.6 (19 reviews) | Not enough data | 
| **Task Ranking** | 9.6 (19 reviews) | Not enough data | 
| **Kanban Board** | 8.6 (19 reviews) | Not enough data | 
| **Custom Workflows** | 8.9 (19 reviews) | 8.6 (737 reviews) | 
| **Release Forecasting** | 8.6 (19 reviews) | Not enough data | 
| **Projections** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 

#### Workflow Management

| Feature | Mattermost | Slack | 
|---|---|---|
| **Time Tracking** | 8.9 (19 reviews) | Not enough data | 
| **Progress Monitoring** | 9.0 (19 reviews) | Not enough data | 
| **Budgeting** | 9.0 (18 reviews) | Not enough data | 
| **Team Scorecard** | 8.4 (18 reviews) | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Milestone Tracking** | Not enough data | Not enough data | 
| **Task Progress Tracking** | Not enough data | Not enough data | 
| **Project Tracking** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Task Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Real-Time Updates** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Task Planning** | Not enough data | Not enough data | 
| **Product Lifecycle Management** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Resource Management** | Not enough data | Not enough data | 
| **Planning Tools** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Requirements Management** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Multiple Projects** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Project Planning** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Release Planning** | Not enough data | Not enough data | 
| **Customer Journey Mapping** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Gantt/Timeline View** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **To-Do List** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Deadline Management** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Product Roadmapping** | Not enough data | Not enough data | 
| **Idea Management** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Agile Methodologies** | Not enough data | Not enough data | 
| **Timeline Management** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Data Security** | Not enough data | Not enough data | 
| **Project Templates** | Not enough data | Not enough data | 
| **Feedback Management** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Template Management** | Not enough data | Not enough data | 
| **Guest Access** | Not enough data | Not enough data | 
| **Visualization** | Not enough data | Not enough data | 

### Knowledge Management

| Product | Score | Reviews |
|---|---|---|
| **Mattermost** | N/A | N/A |
| **Slack** | N/A | N/A |

#### Knowledge Base

| Feature | Mattermost | Slack | 
|---|---|---|
| **Q & A** | Not enough data | Not enough data | 
| **Link Sharing** | Not enough data | Not enough data | 
| **Searchable** | Not enough data | Not enough data | 

#### Security

| Feature | Mattermost | Slack | 
|---|---|---|
| **Verification** | Not enough data | Not enough data | 
| **Role-Based Permission** | Not enough data | Not enough data | 
| **Public vs Private** | Not enough data | Not enough data | 

#### Content

| Feature | Mattermost | Slack | 
|---|---|---|
| **Trackable Analytics** | Not enough data | Not enough data | 
| **Import** | Not enough data | Not enough data | 
| **File Viewing** | Not enough data | Not enough data | 
| **Update Notifications** | Not enough data | Not enough data | 

#### Communication

| Feature | Mattermost | Slack | 
|---|---|---|
| **Social Features** | Not enough data | Not enough data | 
| **Tagging ** | Not enough data | Not enough data | 
| **Upload ** | Not enough data | Not enough data | 
| **Comments** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Mattermost | Slack | 
|---|---|---|
| **Collaboration Tools** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Content Library** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Text Editing** | Not enough data | Not enough data | 
| **Widgets** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Knowledge Base Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Self Service Portal** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Catalog Management** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [Workflow Management Software](https://www.g2.com/categories/workflow-management), [Business Instant Messaging Software](https://www.g2.com/categories/business-instant-messaging)

**Unique to Mattermost (3):** [Employee Intranet Software](https://www.g2.com/categories/employee-intranet), [Product Management Software](https://www.g2.com/categories/product-management-software), [Incident Management Software](https://www.g2.com/categories/incident-management)

**Unique to Slack (9):** [Knowledge Base Software](https://www.g2.com/categories/knowledge-base-software), [Unified Workspaces Software](https://www.g2.com/categories/unified-workspaces), [Work Management Software](https://www.g2.com/categories/work-management), [Enterprise Search Software](https://www.g2.com/categories/enterprise-search-software), [Q&A Platforms ](https://www.g2.com/categories/q-a-platforms), [AI Note-Taking Software](https://www.g2.com/categories/ai-note-taking-software), [Project Collaboration Software](https://www.g2.com/categories/project-collaboration), [Audio Conferencing Software](https://www.g2.com/categories/audio-conferencing), [Enterprise AI Chatbots Software](https://www.g2.com/categories/enterprise-ai-chatbots)


---
## Reviewer Demographics

### By Company Size

| Segment | Mattermost | Slack | 
|---|---|---|
| **Small-Business** | 30.1% | 40.8% | 
| **Mid-Market** | 37.5% | 40.7% | 
| **Enterprise** | 32.4% | 18.5% | 

### By Industry

#### Mattermost

- **Information Technology and Services:** 21.3%
- **Computer Software:** 14.1%
- **Financial Services:** 4.6%
- **Internet:** 3.7%
- **Automotive:** 3.7%
- **Computer & Network Security:** 3.7%
- **Retail:** 3.4%
- **Telecommunications:** 3.2%
- **Education Management:** 2.6%
- **Banking:** 2.6%
- **Other:** 37.1%

#### Slack

- **Computer Software:** 15.4%
- **Information Technology and Services:** 13.2%
- **Marketing and Advertising:** 8.4%
- **Internet:** 4.6%
- **Financial Services:** 3.4%
- **Education Management:** 3.3%
- **Higher Education:** 3.2%
- **Non-Profit Organization Management:** 2.6%
- **Hospital & Health Care:** 2.1%
- **Retail:** 1.8%
- **Other:** 42.1%

---
## Alternatives

### Alternatives to Mattermost

- [Microsoft Teams](https://www.g2.com/products/microsoft-teams/reviews) — 4.4/5 stars (19344 reviews)
- [Rocket.Chat](https://www.g2.com/products/rocket-chat/reviews) — 4.2/5 stars (373 reviews)
- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (14714 reviews)
- [Webex Suite](https://www.g2.com/products/cisco-webex-suite/reviews) — 4.2/5 stars (18926 reviews)
- [Flock](https://www.g2.com/products/flock/reviews) — 4.4/5 stars (300 reviews)
- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (48217 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56382 reviews)
- [Bitrix24](https://www.g2.com/products/bitrix24/reviews) — 4.1/5 stars (613 reviews)
- [RingCentral Video](https://www.g2.com/products/ringcentral-video/reviews) — 4.2/5 stars (505 reviews)
- [Basecamp](https://www.g2.com/products/basecamp/reviews) — 4.1/5 stars (5489 reviews)

### Alternatives to Slack

- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (14714 reviews)
- [monday AI Work Platform](https://www.g2.com/products/monday-com/reviews) — 4.7/5 stars (17248 reviews)
- [Confluence](https://www.g2.com/products/confluence/reviews) — 4.1/5 stars (4370 reviews)
- [Swit](https://www.g2.com/products/swit/reviews) — 4.7/5 stars (362 reviews)
- [Asana](https://www.g2.com/products/asana/reviews) — 4.4/5 stars (14007 reviews)
- [Wrike](https://www.g2.com/products/wrike/reviews) — 4.2/5 stars (4537 reviews)
- [Workvivo](https://www.g2.com/products/workvivo/reviews) — 4.8/5 stars (2708 reviews)
- [Smartsheet](https://www.g2.com/products/smartsheet/reviews) — 4.4/5 stars (22766 reviews)
- [Microsoft Teams](https://www.g2.com/products/microsoft-teams/reviews) — 4.4/5 stars (19344 reviews)
- [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (13862 reviews)

---
## Top Discussions

### Mattermost

- Title: [What is Mattermost used for?](https://www.g2.com/discussions/what-is-mattermost-used-for) — 3 comments
  > **Top comment:** "Mattermost is used primarily as a chat platform."
- Title: [What is Mattermost used for?](https://www.g2.com/discussions/mattermost-what-is-mattermost-used-for) — 2 comments
  > **Top comment:** "For business & professional communications mostly. You can say opensource slack."
- Title: [Is Slack a Mattermost?](https://www.g2.com/discussions/is-slack-a-mattermost) — 2 comments
  > **Top comment:** "Slack is not “Mattermost”. But Mattermost in same category, and best open-source alternative to slack with more features."
- Title: [Is Mattermost secure?](https://www.g2.com/discussions/is-mattermost-secure) — 2 comments
  > **Top comment:** "Yes, I have used it for long and it’s the most secure BIM tool that I have ever used!"
- Title: [when are you going to improve its UI?](https://www.g2.com/discussions/when-are-you-going-to-improve-its-ui) — 2 comments, 1 upvote
  > **Top comment:** "Good news, it's opensource so you can fork it yourself:
https://github.com/mattermost
"

### Slack

- Title: [How do I delete a channel in slack?](https://www.g2.com/discussions/10278-how-do-i-delete-a-channel-in-slack) — 47 comments, 8 upvotes
  > **Top comment:** "Currently, Slack has disabled deleting a channel, you can only archive it if you created it."
- Title: [What does slack software do?](https://www.g2.com/discussions/what-does-slack-software-do) — 29 comments, 1 upvote
  > **Top comment:** "Slack is a messaging software perfect for companies, it allows you to create channels (groups), it let's you answer to messages in threads and react to..."
- Title: [What is Slack used for?](https://www.g2.com/discussions/what-is-slack-used-for) — 23 comments, 7 upvotes
  > **Top comment:** "It connect us with the people no matter where we are through messaging and calls."
- Title: [Is Slack a good tool?](https://www.g2.com/discussions/is-slack-a-good-tool) — 21 comments, 23 upvotes
  > **Top comment:** "Yes it is a good tool. I am using it for a couple of years.  "
- Title: [What integrations have you found most effective for streamlining communication in Slack?](https://www.g2.com/discussions/what-integrations-have-you-found-most-effective-for-streamlining-communication-in-slack) — 19 comments, 4 upvotes
  > **Top comment:** "Microsoft Outlook, Google Suite"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/mattermost-vs-slack)