# Notion, Slack vs Viva Engage Comparison

| | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.5 out of 5 | 3.6 out of 5 | 
| **Total Reviews** | 11,841 | 39,018 | 1,441 | 
| **Largest Market Segment** | Small-Business (65.5% of reviews) | Small-Business (41.0% of reviews) | Enterprise (59.6% of reviews) | 
| **Entry Level Price** | Free | $0.00 | No pricing available | 

---
## Top Pros & Cons

### Notion

Pros:
- Ease of Use (4770 reviews)
- Features (2748 reviews)

Cons:
- Learning Curve (1909 reviews)
- Limited Features (1032 reviews)

### Slack

Pros:
- Ease of Use (3618 reviews)
- Team Collaboration (3147 reviews)

Cons:
- Notification Issues (1136 reviews)
- Missing Features (939 reviews)

### Viva Engage

Pros:
- Ease of Use (4 reviews)
- Connectivity (3 reviews)

Cons:
- Low Engagement (3 reviews)
- Distraction (2 reviews)

---
## Ratings Comparison
| Rating | Notion | Slack | Viva Engage | 
|---|---|---|---|
  | **Meets Requirements** | 8.8 (8110 reviews) | 9.2 (31617 reviews) | 7.9 (1264 reviews) | 
  | **Ease of Use** | 8.3 (8267 reviews) | 9.2 (32473 reviews) | 8.1 (1280 reviews) | 
  | **Ease of Setup** | 8.3 (4185 reviews) | 9.2 (8791 reviews) | 8.3 (178 reviews) | 
  | **Ease of Admin** | 8.4 (2300 reviews) | 8.9 (5423 reviews) | 7.7 (166 reviews) | 
  | **Quality of Support** | 8.5 (5717 reviews) | 8.8 (22006 reviews) | 7.8 (757 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.9 (2157 reviews) | 9.1 (4904 reviews) | 7.8 (147 reviews) | 
  | **Product Direction (% positive)** | 9.4 (8087 reviews) | 8.7 (30832 reviews) | 6.0 (1264 reviews) | 

---
## Pricing

### Notion

#### Entry-Level Pricing

Plan: Free

Price: Free

Description: For individuals to organize personal projects and life

Key Features:
- Free for individual usage
- Basic forms
- Basic sites

[Browse all 4 editions](https://www.g2.com/products/notion/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

### Viva Engage

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Team Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Communication

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

#### Content Management

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

#### Productivity Tools

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Task Management** | Not enough data | Not enough data | Not enough data | 
| **Calendar** | Not enough data | Not enough data | Not enough data | 
| **Search** | Not enough data | Not enough data | Not enough data | 
| **Mobile** | Not enough data | Not enough data | Not enough data | 
| **Multi-Language Support** | Not enough data | Not enough data | Not enough data | 

#### Administration

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

### Project Management

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 7.9/10 | 4685 |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Tasks

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Creation & Assignment** | 8.7 (3799 reviews) | Not enough data | Not enough data | 
| **Due Dates** | 8.3 (3710 reviews) | Not enough data | Not enough data | 
| **Task Prioritization** | 8.6 (3814 reviews) | Not enough data | Not enough data | 
| **To-Do Lists** | 8.9 (3954 reviews) | Not enough data | Not enough data | 
| **Dependencies** | 7.7 (3088 reviews) | Not enough data | Not enough data | 
| **Mass Updates** | 7.5 (2867 reviews) | Not enough data | Not enough data | 
| **Drag & Drop** | 8.4 (3639 reviews) | Not enough data | Not enough data | 
| **Recurring Tasks** | 7.5 (3219 reviews) | Not enough data | Not enough data | 

#### Projects

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Planning** | 8.8 (3592 reviews) | Not enough data | Not enough data | 
| **Project Map** | 8.4 (3159 reviews) | Not enough data | Not enough data | 
| **GANTT** | 7.4 (2539 reviews) | Not enough data | Not enough data | 
| **Calendar View** | 8.1 (3399 reviews) | Not enough data | Not enough data | 
| **Views** | 8.5 (3304 reviews) | Not enough data | Not enough data | 
| **Project Budgeting** | 7.4 (2585 reviews) | Not enough data | Not enough data | 
| **Issue Tracking** | 7.8 (2720 reviews) | Not enough data | Not enough data | 
| **Templates** | 8.3 (3470 reviews) | Not enough data | Not enough data | 
| **Critical Path** | 7.3 (2343 reviews) | Not enough data | Not enough data | 
| **Time & Expense** | 7.5 (2617 reviews) | Not enough data | Not enough data | 
| **Methodologies** | 7.8 (2520 reviews) | Not enough data | Not enough data | 

#### Resource Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Resource Definiton** | 7.9 (2774 reviews) | Not enough data | Not enough data | 
| **Capacity** | 7.8 (2834 reviews) | Not enough data | Not enough data | 
| **Scheduling** | 7.9 (3120 reviews) | Not enough data | Not enough data | 

#### Project Monitoring

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Baselining / KPIs** | 7.7 (2402 reviews) | Not enough data | Not enough data | 
| **Resource Allocation** | 7.6 (2450 reviews) | Not enough data | Not enough data | 
| **Dashboards** | 8.2 (3105 reviews) | Not enough data | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | 7.8 (1368 reviews) | Not enough data | Not enough data | 
| **AI Text Summarization** | 8.0 (1362 reviews) | Not enough data | Not enough data | 

#### Agentic AI - Project Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | 6.9 (645 reviews) | Not enough data | Not enough data | 
| **Multi-step Planning** | 7.2 (645 reviews) | Not enough data | Not enough data | 
| **Cross-system Integration** | 7.1 (650 reviews) | Not enough data | Not enough data | 
| **Adaptive Learning** | 7.0 (634 reviews) | Not enough data | Not enough data | 
| **Natural Language Interaction** | 7.3 (636 reviews) | Not enough data | Not enough data | 
| **Proactive Assistance** | 6.8 (632 reviews) | Not enough data | Not enough data | 
| **Decision Making** | 7.0 (636 reviews) | Not enough data | Not enough data | 

### AI Chatbots

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 7.8/10 | 313 |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Core Conversational Capabilities - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Controlled LLM Response Generation** | 8.2 (55 reviews) | Not enough data | Not enough data | 
| **Context Maintenance Within Sessions** | 8.2 (56 reviews) | Not enough data | Not enough data | 
| **Natural Language Understanding & Intent Inference** | 8.3 (57 reviews) | Not enough data | Not enough data | 

#### Data

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Reliability** | 8.0 (221 reviews) | Not enough data | Not enough data | 
| **Data Security** | 8.0 (213 reviews) | Not enough data | Not enough data | 

#### Interaction

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Complex Query Handling** | 7.6 (214 reviews) | Not enough data | Not enough data | 
| **Natural Conversation** | 8.0 (218 reviews) | Not enough data | Not enough data | 
| **Understanding** | 8.1 (219 reviews) | Not enough data | Not enough data | 
| **Context Management** | 8.0 (212 reviews) | Not enough data | Not enough data | 
| **Customizability** | 8.2 (219 reviews) | Not enough data | Not enough data | 

#### Task & Flow Management - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Scripted Dialogue & Decision Tree Support** | 7.8 (51 reviews) | Not enough data | Not enough data | 
| **Fallback Responses for Unknown Queries** | 7.8 (52 reviews) | Not enough data | Not enough data | 

#### Learning

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **User Interaction Learning** | 8.0 (211 reviews) | Not enough data | Not enough data | 
| **Error Learning** | 7.3 (206 reviews) | Not enough data | Not enough data | 

#### Deployment & Embedding - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **API Access for Business System Integration** | 7.3 (48 reviews) | Not enough data | Not enough data | 
| **Web Widget & SDK Embedding** | 7.1 (43 reviews) | Not enough data | Not enough data | 

#### Content Generation

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Creativity** | 7.9 (211 reviews) | Not enough data | Not enough data | 
| **Content Accuracy** | 7.9 (211 reviews) | Not enough data | Not enough data | 

#### Admin & Configuration - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **No-Code Conversation Design** | 7.4 (44 reviews) | Not enough data | Not enough data | 

#### System

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **API Flexibility** | 7.2 (202 reviews) | Not enough data | Not enough data | 
| **Update Frequency and Utility** | 7.8 (207 reviews) | Not enough data | Not enough data | 
| **Cross-Platform Compatibility	** | 7.8 (207 reviews) | Not enough data | Not enough data | 
| **Software Integration** | 7.9 (218 reviews) | Not enough data | Not enough data | 

#### Agentic AI - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | 7.6 (143 reviews) | Not enough data | Not enough data | 
| **Multi-step Planning** | 7.8 (144 reviews) | Not enough data | Not enough data | 
| **Cross-system Integration** | 7.6 (144 reviews) | Not enough data | Not enough data | 
| **Adaptive Learning** | 7.7 (145 reviews) | Not enough data | Not enough data | 
| **Natural Language Interaction** | 7.9 (144 reviews) | Not enough data | Not enough data | 
| **Proactive Assistance** | 7.4 (140 reviews) | Not enough data | Not enough data | 
| **Decision Making** | 7.5 (147 reviews) | Not enough data | Not enough data | 

#### Monitoring & Improvement - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Feedback-Driven Response Optimization** | 8.0 (44 reviews) | Not enough data | Not enough data | 

#### Reliability & Safety - AI Chatbots

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Guardrails & Content Controls** | 8.1 (45 reviews) | Not enough data | Not enough data | 

### Business Instant Messaging

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.2/10 | 16019 |
| **Viva Engage** | N/A | N/A |

#### Business Instant Messaging

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **File Sharing** | Not enough data | 9.1 (13972 reviews) | Not enough data | 
| **Notifications** | Not enough data | 9.0 (14507 reviews) | Not enough data | 
| **Search** | Not enough data | 8.6 (13803 reviews) | Not enough data | 

#### Business Instant Messaging 

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Audio Conferencing** | Not enough data | 8.5 (10246 reviews) | Not enough data | 
| **Video Conferencing** | Not enough data | 8.1 (9580 reviews) | Not enough data | 

#### Business Instant Messaging

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Mobile Application** | Not enough data | 9.1 (13683 reviews) | Not enough data | 
| **Web Application** | Not enough data | 9.2 (13289 reviews) | Not enough data | 
| **Integrations** | Not enough data | 9.0 (11838 reviews) | Not enough data | 

#### Generative AI - Business Instant Messaging

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Text Summarization** | Not enough data | 7.5 (1486 reviews) | Not enough data | 

#### AI - Business Instant Messaging

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Powered Search** | Not enough data | 7.5 (1470 reviews) | Not enough data | 
| **Smart Notifications** | Not enough data | 7.9 (1478 reviews) | Not enough data | 
| **AI Powered Language Translation** | Not enough data | 7.4 (1450 reviews) | Not enough data | 
| **Content Generation** | Not enough data | 7.4 (1452 reviews) | Not enough data | 

#### Agentic AI - Business Instant Messaging

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Cross-system Integration** | Not enough data | 7.7 (879 reviews) | Not enough data | 
| **Natural Language Interaction** | Not enough data | 7.7 (863 reviews) | Not enough data | 

### AI Writing Assistant

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 8.0/10 | 4141 |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Grammar

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Grammar Check** | 8.5 (3467 reviews) | Not enough data | Not enough data | 
| **Tone Check** | 8.3 (3245 reviews) | Not enough data | Not enough data | 
| **Sentence Formatting** | 8.6 (3415 reviews) | Not enough data | Not enough data | 

#### Formatting

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Plagiarism Check** | 7.2 (2184 reviews) | Not enough data | Not enough data | 
| **Style Editor** | 8.0 (2965 reviews) | Not enough data | Not enough data | 
| **Citation Finder** | 7.0 (2185 reviews) | Not enough data | Not enough data | 

#### Content 

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Idea Recommendation** | 8.3 (3058 reviews) | Not enough data | Not enough data | 
| **Content Generation** | 8.4 (3311 reviews) | Not enough data | Not enough data | 
| **Form Generation** | 7.8 (2446 reviews) | Not enough data | Not enough data | 

#### Product Type

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Standalone Application** | 8.4 (2684 reviews) | Not enough data | Not enough data | 
| **Plugin** | 7.4 (2049 reviews) | Not enough data | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | 8.2 (1079 reviews) | Not enough data | Not enough data | 
| **AI Text Summarization** | 8.5 (1079 reviews) | Not enough data | Not enough data | 

### Workflow Management

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.4/10 | 905 |
| **Viva Engage** | N/A | N/A |

#### Setup

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Activities** | Not enough data | 9.1 (677 reviews) | Not enough data | 
| **Flows** | Not enough data | 8.9 (673 reviews) | Not enough data | 
| **Dependencies** | Not enough data | 8.7 (648 reviews) | Not enough data | 
| **Notifications** | Not enough data | 8.9 (687 reviews) | Not enough data | 

#### Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Updates** | Not enough data | 9.0 (662 reviews) | Not enough data | 
| **Audit Trail** | Not enough data | 8.7 (640 reviews) | Not enough data | 
| **Integration** | Not enough data | 8.9 (660 reviews) | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | 7.7 (557 reviews) | Not enough data | 

#### Agentic AI - Workflow Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.7 (277 reviews) | Not enough data | 
| **Multi-step Planning** | Not enough data | 7.9 (273 reviews) | Not enough data | 
| **Cross-system Integration** | Not enough data | 8.1 (282 reviews) | Not enough data | 
| **Adaptive Learning** | Not enough data | 7.9 (279 reviews) | Not enough data | 
| **Natural Language Interaction** | Not enough data | 7.9 (278 reviews) | Not enough data | 
| **Proactive Assistance** | Not enough data | 7.9 (279 reviews) | Not enough data | 
| **Decision Making** | Not enough data | 8.0 (282 reviews) | Not enough data | 

### Q&A Platforms

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.8/10 | 410 |
| **Viva Engage** | N/A | N/A |

#### Account Options

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Single Sign-On (SSO)** | Not enough data | 9.2 (286 reviews) | Not enough data | 
| **Social Login** | Not enough data | 8.4 (278 reviews) | Not enough data | 
| **Reputation System** | Not enough data | 8.6 (269 reviews) | Not enough data | 
| **Topic Subscription** | Not enough data | 8.7 (275 reviews) | Not enough data | 
| **Bookmarking** | Not enough data | 8.9 (285 reviews) | Not enough data | 
| **History** | Not enough data | 8.9 (279 reviews) | Not enough data | 

#### Q&A Tools

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Tags** | Not enough data | 9.1 (284 reviews) | Not enough data | 
| **Commenting System** | Not enough data | 9.1 (279 reviews) | Not enough data | 
| **Notifications** | Not enough data | 9.1 (285 reviews) | Not enough data | 
| **Voting** | Not enough data | 8.7 (271 reviews) | Not enough data | 
| **Integrations** | Not enough data | 9.1 (281 reviews) | Not enough data | 
| **Knowledge Integrations** | Not enough data | 8.9 (273 reviews) | Not enough data | 
| **Embedding** | Not enough data | 8.6 (266 reviews) | Not enough data | 
| **Formatting** | Not enough data | 8.9 (270 reviews) | Not enough data | 
| **Analytics** | Not enough data | 8.5 (266 reviews) | Not enough data | 

### Knowledge Base

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 7.8/10 | 5685 |
| **Slack** | 8.3/10 | 496 |
| **Viva Engage** | N/A | N/A |

#### Knowledge Pages

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Templates** | 8.3 (3751 reviews) | 8.4 (343 reviews) | Not enough data | 
| **In-Content Feedback** | 8.0 (3047 reviews) | 8.3 (343 reviews) | Not enough data | 
| **Versioning and Version History** | 8.0 (3186 reviews) | 8.1 (332 reviews) | Not enough data | 
| **Decision Trees** | Feature Not Available | 8.1 (330 reviews) | Not enough data | 
| **Duplicate Detection** | 6.8 (2588 reviews) | 7.9 (325 reviews) | Not enough data | 
| **Content Editor** | 8.3 (3449 reviews) | 8.4 (330 reviews) | Not enough data | 

#### Knowledge Dissemination

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Page Analytics** | Feature Not Available | 8.2 (321 reviews) | Not enough data | 
| **Permissions** | 8.0 (3167 reviews) | 8.7 (329 reviews) | Not enough data | 
| **Knowledge Sharing** | 8.8 (3870 reviews) | 9.0 (338 reviews) | Not enough data | 
| **Notifications** | 7.8 (3416 reviews) | 8.9 (337 reviews) | Not enough data | 
| **Advanced Search** | 8.0 (3229 reviews) | 8.3 (330 reviews) | Not enough data | 
| **Browser Extension** | 7.4 (2813 reviews) | 8.2 (318 reviews) | Not enough data | 
| **Organization** | 8.6 (3835 reviews) | 8.7 (335 reviews) | Not enough data | 
| **Other Integrations** | 7.7 (3048 reviews) | 8.6 (323 reviews) | Not enough data | 
| **Knowledge Integrations** | 7.9 (2910 reviews) | 8.6 (315 reviews) | Not enough data | 

#### Agentic AI - Knowledge Base

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Adaptive Learning** | 7.3 (940 reviews) | 7.9 (197 reviews) | Not enough data | 
| **Natural Language Interaction** | 7.4 (997 reviews) | 7.9 (199 reviews) | Not enough data | 
| **Proactive Assistance** | 7.0 (934 reviews) | 7.8 (197 reviews) | Not enough data | 

### Unified Workspaces

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.3/10 | 1021 |
| **Viva Engage** | N/A | N/A |

#### Login Options 

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Single Sign-On (SSO)** | Not enough data | 9.1 (774 reviews) | Not enough data | 
| **Password Saver** | Not enough data | 8.5 (737 reviews) | Not enough data | 

#### Productivity

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Email Client** | Not enough data | 8.0 (726 reviews) | Not enough data | 
| **Split Screen** | Not enough data | 8.3 (730 reviews) | Not enough data | 
| **Activity Feed** | Not enough data | 8.6 (739 reviews) | Not enough data | 
| **Virtual Assistant** | Not enough data | 7.8 (712 reviews) | Not enough data | 
| **Analytics and Reporting** | Not enough data | 7.9 (705 reviews) | Not enough data | 

#### Customization 

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Custom Workflows** | Not enough data | 8.6 (735 reviews) | Not enough data | 
| **Multiple Workspaces** | Not enough data | 9.0 (752 reviews) | Not enough data | 
| **Custom Application Integration** | Not enough data | 8.7 (718 reviews) | Not enough data | 

#### Agentic AI - Unified Workspaces

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.5 (403 reviews) | Not enough data | 
| **Adaptive Learning** | Not enough data | 7.6 (400 reviews) | Not enough data | 

### Enterprise Search Software

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 7.5/10 | 401 |
| **Slack** | 9.0/10 | 141 |
| **Viva Engage** | N/A | N/A |

#### Compatibility

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Federated Search** | 7.8 (322 reviews) | 8.9 (95 reviews) | Not enough data | 
| **File Types** | 7.8 (320 reviews) | 9.0 (97 reviews) | Not enough data | 
| **Global Language Support** | 7.3 (308 reviews) | 8.9 (88 reviews) | Not enough data | 

#### Agentic AI - Enterprise Search Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | 7.1 (173 reviews) | 8.4 (57 reviews) | Not enough data | 
| **Multi-step Planning** | 7.1 (175 reviews) | 8.3 (54 reviews) | Not enough data | 
| **Cross-system Integration** | 7.2 (171 reviews) | 8.9 (55 reviews) | Not enough data | 
| **Adaptive Learning** | 7.1 (168 reviews) | 8.5 (55 reviews) | Not enough data | 
| **Proactive Assistance** | 6.9 (166 reviews) | 8.5 (55 reviews) | Not enough data | 
| **Decision Making** | 7.0 (169 reviews) | 8.6 (54 reviews) | Not enough data | 

#### Search Queries

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Typo Tolerance** | 7.7 (320 reviews) | 8.8 (92 reviews) | Not enough data | 
| **Faceted Search** | 7.7 (312 reviews) | 9.1 (93 reviews) | Not enough data | 
| **Synonyms** | 7.4 (310 reviews) | 8.7 (88 reviews) | Not enough data | 
| **Highlighting** | 7.7 (312 reviews) | 9.1 (90 reviews) | Not enough data | 
| **Natural Language** | 8.1 (322 reviews) | 8.9 (88 reviews) | Not enough data | 

#### AI powered search - Enterprise Search Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Generative RAG (Retrieval augmented generation)** | 7.5 (101 reviews) | 9.0 (21 reviews) | Not enough data | 
| **Relevance Tuning** | 7.2 (99 reviews) | 9.1 (21 reviews) | Not enough data | 
| **NLP & Semantic search** | 7.1 (99 reviews) | 9.0 (21 reviews) | Not enough data | 

#### Functionality

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Personalization** | 8.0 (317 reviews) | 8.8 (87 reviews) | Not enough data | 
| **Search Analytics** | 7.3 (316 reviews) | 8.9 (88 reviews) | Not enough data | 
| **Integrations** | 7.6 (322 reviews) | 9.1 (94 reviews) | Not enough data | 

#### Compatibility - Enterprise Search Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **File Types** | 7.7 (105 reviews) | 9.3 (23 reviews) | Not enough data | 
| **Federated Search** | 7.5 (102 reviews) | 9.2 (21 reviews) | Not enough data | 
| **Global Language Support** | 7.4 (98 reviews) | 9.2 (22 reviews) | Not enough data | 

#### Functionality - Enterprise Search Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Personalization** | 7.7 (102 reviews) | 9.2 (23 reviews) | Not enough data | 
| **Search Analytics** | 7.4 (99 reviews) | 9.0 (21 reviews) | Not enough data | 
| **Integrations** | 7.3 (100 reviews) | 9.4 (24 reviews) | Not enough data | 

#### Search Queries - Enterprise Search Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Highlighting** | 7.6 (94 reviews) | 9.4 (21 reviews) | Not enough data | 
| **Faceted Search** | 7.5 (95 reviews) | 9.1 (20 reviews) | Not enough data | 
| **Typo Tolerance** | 7.8 (98 reviews) | 9.0 (22 reviews) | Not enough data | 
| **Synonyms** | 7.6 (95 reviews) | 9.3 (22 reviews) | Not enough data | 

### Work Management

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.5/10 | 2623 |
| **Viva Engage** | N/A | N/A |

#### Automation

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Workflows** | Not enough data | 8.9 (1248 reviews) | Not enough data | 
| **Customization** | Not enough data | 8.8 (1203 reviews) | Not enough data | 
| **Data repository** | Not enough data | 8.5 (1178 reviews) | Not enough data | 

#### Administration

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Permissions** | Not enough data | 8.8 (1197 reviews) | Not enough data | 
| **Procedures** | Not enough data | 8.6 (1133 reviews) | Not enough data | 
| **Remote Work** | Not enough data | 9.4 (1359 reviews) | Not enough data | 

#### Project management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Task Prioritization** | Not enough data | 8.7 (1167 reviews) | Not enough data | 
| **Dependencies** | Not enough data | 8.5 (1115 reviews) | Not enough data | 
| **Planning** | Not enough data | 8.6 (1138 reviews) | Not enough data | 
| **Views** | Not enough data | 8.5 (1128 reviews) | Not enough data | 
| **Scheduling** | Not enough data | 8.6 (1137 reviews) | Not enough data | 
| **Critical Path** | Not enough data | 8.3 (1094 reviews) | Not enough data | 
| **Dashboards** | Not enough data | 8.3 (1121 reviews) | Not enough data | 

#### Workload

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Resource Allocation** | Not enough data | 8.4 (1077 reviews) | Not enough data | 
| **Workspace** | Not enough data | 8.8 (1171 reviews) | Not enough data | 
| **Configuration** | Not enough data | 8.6 (1092 reviews) | Not enough data | 
| **Insights** | Not enough data | 8.5 (1088 reviews) | Not enough data | 

#### Communication & Collaboration

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Communication Channels** | Not enough data | 9.4 (1780 reviews) | Not enough data | 
| **Document Management** | Not enough data | 9.0 (1332 reviews) | Not enough data | 
| **Collaboration** | Not enough data | 9.4 (1514 reviews) | Not enough data | 

#### Cost Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Project Budgeting** | Not enough data | 8.0 (1069 reviews) | Not enough data | 
| **Time & Expense** | Not enough data | 8.2 (1070 reviews) | Not enough data | 
| **Profitability** | Not enough data | 8.1 (1064 reviews) | Not enough data | 

#### Integration

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Front Office** | Not enough data | 8.7 (1273 reviews) | Not enough data | 
| **Back Office** | Not enough data | 8.4 (1082 reviews) | Not enough data | 
| **External data** | Not enough data | 8.4 (1090 reviews) | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | 7.5 (1026 reviews) | Not enough data | 
| **AI Text Summarization** | Not enough data | 7.7 (1046 reviews) | Not enough data | 

#### Agentic AI - Work Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.7 (519 reviews) | Not enough data | 
| **Multi-step Planning** | Not enough data | 7.8 (511 reviews) | Not enough data | 
| **Cross-system Integration** | Not enough data | 8.2 (546 reviews) | Not enough data | 
| **Natural Language Interaction** | Not enough data | 7.8 (516 reviews) | Not enough data | 

### Project Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 8.5/10 | 1647 |
| **Viva Engage** | N/A | N/A |

#### Communication

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Chat** | Not enough data | 9.4 (1187 reviews) | Not enough data | 
| **Discussions** | Not enough data | 9.4 (1143 reviews) | Not enough data | 
| **External** | Not enough data | 8.8 (1057 reviews) | Not enough data | 
| **Feedback** | Not enough data | 8.9 (1038 reviews) | Not enough data | 
| **Announcements** | Not enough data | 9.1 (1050 reviews) | Not enough data | 

#### Content & Documents

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **File Sharing** | Not enough data | 9.2 (1108 reviews) | Not enough data | 
| **Notes** | Not enough data | 8.9 (1045 reviews) | Not enough data | 
| **Search** | Not enough data | 8.7 (1069 reviews) | Not enough data | 
| **Versioning** | Not enough data | 8.1 (1003 reviews) | Not enough data | 

#### Controls

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Custom Views** | Not enough data | 8.3 (989 reviews) | Not enough data | 
| **Followers** | Not enough data | 8.1 (984 reviews) | Not enough data | 
| **User Management** | Not enough data | 8.7 (999 reviews) | Not enough data | 
| **Calendars** | Not enough data | 8.4 (1005 reviews) | Not enough data | 
| **Public Sharing** | Not enough data | 8.2 (974 reviews) | Not enough data | 

#### Project Management

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Task Management** | Not enough data | 8.4 (1002 reviews) | Not enough data | 
| **Planning** | Not enough data | 8.3 (976 reviews) | Not enough data | 
| **Visibility** | Not enough data | 8.5 (982 reviews) | Not enough data | 
| **Integration** | Not enough data | 8.7 (994 reviews) | Not enough data | 

#### Remote Collaboration

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Alignment** | Not enough data | 9.0 (996 reviews) | Not enough data | 
| **Accountability** | Not enough data | 8.7 (970 reviews) | Not enough data | 
| **Connectivity** | Not enough data | 9.0 (989 reviews) | Not enough data | 
| **Offline Mode** | Not enough data | 7.8 (954 reviews) | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | 7.3 (926 reviews) | Not enough data | 
| **AI Text Summarization** | Not enough data | 7.4 (928 reviews) | Not enough data | 

#### Agentic AI - Project Collaboration

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

### AI Agents For Business Operations

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 10.0/10 | 13 |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Responses

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Personalization** | Not enough data | Not enough data | Not enough data | 
| **Route To Human** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Understanding (NLU)** | Not enough data | Not enough data | Not enough data | 

#### Automation - AI Agents

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Sales Follow-Up** | Not enough data | Not enough data | Not enough data | 
| **Customer Interaction Automation** | Not enough data | Not enough data | Not enough data | 
| **Lead Generation** | 10.0 (5 reviews) | Not enough data | Not enough data | 
| **Document Processing** | Not enough data | Not enough data | Not enough data | 
| **Feedback Collection** | Not enough data | Not enough data | Not enough data | 

#### Platform

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Conversation Editor** | Not enough data | Not enough data | Not enough data | 
| **Integration** | 10.0 (5 reviews) | Not enough data | Not enough data | 
| **Human-In-The-Loop** | Not enough data | Not enough data | Not enough data | 

#### Autonomy -  AI Agents

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Independent Decision Making** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Responses** | Not enough data | Not enough data | Not enough data | 
| **Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Problem Solving** | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | 9.7 (5 reviews) | Not enough data | Not enough data | 

### Enterprise Social Networking (ESN)

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | 9.0/10 | 9 |

#### Content & Community Features - Enterprise Social Networking (ESN)

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Gamification** | Not enough data | Not enough data | 7.7 (8 reviews) | 
| **Community Building** | Not enough data | Not enough data | 9.4 (9 reviews) | 
| **Knowledge Sharing** | Not enough data | Not enough data | 8.8 (8 reviews) | 
| **User Generated Content** | Not enough data | Not enough data | 9.4 (9 reviews) | 

#### Admin & Reporting Features - Enterprise Social Networking (ESN)

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Content Moderation** | Not enough data | Not enough data | 9.2 (8 reviews) | 
| **Polls & Surveys** | Not enough data | Not enough data | 9.4 (8 reviews) | 
| **Content Management** | Not enough data | Not enough data | 9.0 (8 reviews) | 
| **Analytics & Reporting** | Not enough data | Not enough data | 9.0 (8 reviews) | 
| **User Management** | Not enough data | Not enough data | 9.0 (8 reviews) | 

#### Agentic AI - Enterprise Social Networking (ESN)

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 

### AI Agent Builders

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Customization - AI Agent Builders

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Natural Language Configuration** | Not enough data | Not enough data | Not enough data | 
| **Tone Customization** | Not enough data | Not enough data | Not enough data | 
| **Security Guardrails** | Not enough data | Not enough data | Not enough data | 

#### Functionality - AI Agent Builders

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Omni-channel Support** | Not enough data | Not enough data | Not enough data | 
| **Agent Branding** | Not enough data | Not enough data | Not enough data | 
| **Proactive Response Capabilities** | Not enough data | Not enough data | Not enough data | 
| **Seamless Human Escalation** | Not enough data | Not enough data | Not enough data | 

#### Data and Analytics - AI Agent Builders

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Analytics & Reporting** | Not enough data | Not enough data | Not enough data | 
| **Contextual Awareness** | Not enough data | Not enough data | Not enough data | 
| **Data Privacy Compliance** | Not enough data | Not enough data | Not enough data | 

#### Integration - AI Agent Builders

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Workflow Automation** | Not enough data | Not enough data | Not enough data | 
| **API Usage** | Not enough data | Not enough data | Not enough data | 
| **Platform Interoperability** | Not enough data | Not enough data | Not enough data | 
| **CRM Data Integration** | Not enough data | Not enough data | Not enough data | 

### Note-Taking Software

| Product | Score | Reviews |
|---|---|---|
| **Notion** | 7.8/10 | 641 |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Agentic AI - Note-Taking Software

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | 7.8 (486 reviews) | Not enough data | Not enough data | 

### Audio Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 7.6/10 | 349 |
| **Viva Engage** | N/A | N/A |

#### Agentic AI - Audio Conferencing

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Proactive Assistance** | Not enough data | 7.5 (277 reviews) | Not enough data | 
| **Decision Making** | Not enough data | 7.7 (278 reviews) | Not enough data | 

### Employee Intranet

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Agentic AI - Employee Intranet

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 

### AI Note-Taking Software

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | 9.1/10 | 29 |
| **Viva Engage** | N/A | N/A |

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Action Item extraction** | Not enough data | 8.9 (12 reviews) | Not enough data | 
| **Summary Generation** | Not enough data | 9.2 (12 reviews) | Not enough data | 

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

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

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Team-based Access** | Not enough data | 9.3 (12 reviews) | Not enough data | 

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

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

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Integrations** | Not enough data | 9.0 (14 reviews) | Not enough data | 

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Access Control** | Not enough data | 8.9 (14 reviews) | Not enough data | 

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Semantic Search** | Not enough data | 8.8 (12 reviews) | Not enough data | 

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

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Speaker Recognition** | Not enough data | 9.1 (13 reviews) | Not enough data | 

### Knowledge Management

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Knowledge Base

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Q & A** | Not enough data | Not enough data | Not enough data | 
| **Link Sharing** | Not enough data | Not enough data | Not enough data | 
| **Searchable** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Verification** | Not enough data | Not enough data | Not enough data | 
| **Role-Based Permission** | Not enough data | Not enough data | Not enough data | 
| **Public vs Private** | Not enough data | Not enough data | Not enough data | 

#### Content

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Trackable Analytics** | Not enough data | Not enough data | Not enough data | 
| **Import** | Not enough data | Not enough data | Not enough data | 
| **File Viewing** | Not enough data | Not enough data | Not enough data | 
| **Update Notifications** | Not enough data | Not enough data | Not enough data | 

#### Communication

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Social Features** | Not enough data | Not enough data | Not enough data | 
| **Tagging ** | Not enough data | Not enough data | Not enough data | 
| **Upload ** | Not enough data | Not enough data | Not enough data | 
| **Comments** | Not enough data | Not enough data | Not enough data | 

### AI Agents

| Product | Score | Reviews |
|---|---|---|
| **Notion** | N/A | N/A |
| **Slack** | N/A | N/A |
| **Viva Engage** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

---
## Categories

**Unique to Notion (8):** [AI Chatbots Software](https://www.g2.com/categories/ai-chatbots), [Knowledge Base Software](https://www.g2.com/categories/knowledge-base-software), [AI Writing Assistants](https://www.g2.com/categories/ai-writing-assistant), [Note-Taking Software](https://www.g2.com/categories/note-taking-software), [Enterprise Search Software](https://www.g2.com/categories/enterprise-search-software), [Project Management Software](https://www.g2.com/categories/project-management), [ AI Agent Builders Software](https://www.g2.com/categories/ai-agent-builders), [AI Agents For Business Operations](https://www.g2.com/categories/ai-agents-for-business-operations)

**Unique to Slack (10):** [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), [Business Instant Messaging Software](https://www.g2.com/categories/business-instant-messaging), [Project Collaboration Software](https://www.g2.com/categories/project-collaboration), [Workflow Management Software](https://www.g2.com/categories/workflow-management), [Audio Conferencing Software](https://www.g2.com/categories/audio-conferencing)

**Unique to Viva Engage (2):** [Enterprise Social Networking (ESN) Software](https://www.g2.com/categories/enterprise-social-networking-esn), [Employee Intranet Software](https://www.g2.com/categories/employee-intranet)


---
## Reviewer Demographics

### By Company Size

| Segment | Notion | Slack | Viva Engage | 
|---|---|---|---|
| **Small-Business** | 65.5% | 41.0% | 10.2% | 
| **Mid-Market** | 28.7% | 40.7% | 30.2% | 
| **Enterprise** | 5.7% | 18.3% | 59.6% | 

### By Industry

#### Notion

- **Computer Software:** 13.7%
- **Information Technology and Services:** 11.5%
- **Marketing and Advertising:** 7.4%
- **Higher Education:** 6.2%
- **Financial Services:** 4.8%
- **Education Management:** 3.0%
- **Design:** 2.7%
- **Health, Wellness and Fitness:** 2.2%
- **Consulting:** 2.1%
- **Hospital & Health Care:** 1.6%
- **Other:** 44.8%

#### Slack

- **Computer Software:** 15.4%
- **Information Technology and Services:** 13.2%
- **Marketing and Advertising:** 8.5%
- **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:** 1.7%
- **Other:** 42.1%

#### Viva Engage

- **Information Technology and Services:** 14.8%
- **Computer Software:** 6.8%
- **Hospital & Health Care:** 5.2%
- **Education Management:** 3.9%
- **Higher Education:** 3.8%
- **Non-Profit Organization Management:** 3.6%
- **Retail:** 3.5%
- **Accounting:** 3.4%
- **Management Consulting:** 2.7%
- **Financial Services:** 2.5%
- **Other:** 49.5%

---
## Alternatives

### Alternatives to Notion

- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (12373 reviews)
- [Guru](https://www.g2.com/products/guru/reviews) — 4.7/5 stars (2317 reviews)
- [Asana](https://www.g2.com/products/asana/reviews) — 4.4/5 stars (13632 reviews)
- [Coda](https://www.g2.com/products/superhuman-coda/reviews) — 4.6/5 stars (492 reviews)
- [monday Work Management](https://www.g2.com/products/monday-com/reviews) — 4.7/5 stars (15363 reviews)
- [Jira](https://www.g2.com/products/jira/reviews) — 4.3/5 stars (7801 reviews)
- [Airtable](https://www.g2.com/products/airtable/reviews) — 4.6/5 stars (3268 reviews)
- [Slite](https://www.g2.com/products/slite/reviews) — 4.6/5 stars (274 reviews)
- [Hive](https://www.g2.com/products/hive-hive-hive/reviews) — 4.6/5 stars (666 reviews)
- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (47987 reviews)

### Alternatives to Slack

- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (12373 reviews)
- [monday Work Management](https://www.g2.com/products/monday-com/reviews) — 4.7/5 stars (15363 reviews)
- [Confluence](https://www.g2.com/products/confluence/reviews) — 4.1/5 stars (4350 reviews)
- [Swit](https://www.g2.com/products/swit/reviews) — 4.7/5 stars (361 reviews)
- [Asana](https://www.g2.com/products/asana/reviews) — 4.4/5 stars (13632 reviews)
- [Wrike](https://www.g2.com/products/wrike/reviews) — 4.2/5 stars (4529 reviews)
- [Smartsheet](https://www.g2.com/products/smartsheet/reviews) — 4.4/5 stars (22054 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56375 reviews)
- [Microsoft Teams](https://www.g2.com/products/microsoft-teams/reviews) — 4.4/5 stars (18935 reviews)
- [Bitrix24](https://www.g2.com/products/bitrix24/reviews) — 4.1/5 stars (608 reviews)

### Alternatives to Viva Engage

- [Workvivo](https://www.g2.com/products/workvivo/reviews) — 4.8/5 stars (2654 reviews)
- [Jive](https://www.g2.com/products/jive/reviews) — 3.8/5 stars (309 reviews)
- [eXo Platform](https://www.g2.com/products/exo-platform/reviews) — 4.3/5 stars (93 reviews)
- [Simpplr](https://www.g2.com/products/simpplr/reviews) — 4.6/5 stars (361 reviews)
- [Bitrix24](https://www.g2.com/products/bitrix24/reviews) — 4.1/5 stars (608 reviews)
- [HCL Connections](https://www.g2.com/products/hcl-connections/reviews) — 3.9/5 stars (518 reviews)
- [Jostle](https://www.g2.com/products/jostle/reviews) — 4.6/5 stars (227 reviews)
- [Blink](https://www.g2.com/products/blink-blink/reviews) — 4.7/5 stars (289 reviews)
- [Sociabble](https://www.g2.com/products/sociabble/reviews) — 4.7/5 stars (388 reviews)
- [Staffbase](https://www.g2.com/products/staffbase/reviews) — 4.6/5 stars (247 reviews)

---
## Top Discussions

### Notion

- Title: [can i us Notion (basic) for multi-user use](https://www.g2.com/discussions/can-i-us-notion-basic-for-multi-user-use) — 3 comments, 1 upvote
  > **Top comment:** "Yes, just add them as guests"
- Title: [Are there any tool we can integrate into notion for using AI](https://www.g2.com/discussions/are-there-any-tool-we-can-integrate-into-notion-for-using-ai) — 2 comments, 1 upvote
  > **Top comment:** "Notion AI: Built-in generative AI inside Notion for drafting content, summarizing pages, brainstorming, rewriting text, and autofilling databases. Works..."
- Title: [When would you start with the NPO/NGO discount plan?](https://www.g2.com/discussions/when-would-you-start-with-the-npo-ngo-discount-plan) — 2 comments, 1 upvote
  > **Top comment:** "I am a student , and notion is free for every students"
- Title: [How do I script Notion?](https://www.g2.com/discussions/how-do-i-script-notion) — 2 comments, 1 upvote
  > **Top comment:** "Use make.com"
- Title: [How likely are you to hire an implementation consultant for Notion?](https://www.g2.com/discussions/30534-how-likely-are-you-to-hire-an-implementation-consultant-for-notion) — 2 comments, 2 upvotes
  > **Top comment:** "10/10, they make the whole difference (the potential is huge)"

### 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) — 28 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) — 22 comments, 7 upvotes
  > **Top comment:** "It connect us with the people no matter where we are through messaging and calls."
- 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) — 20 comments, 4 upvotes
  > **Top comment:** "Microsoft Outlook, Google Suite"
- Title: [Is Slack a good tool?](https://www.g2.com/discussions/is-slack-a-good-tool) — 20 comments, 22 upvotes
  > **Top comment:** "Yes it is a good tool. I am using it for a couple of years.  "

### Viva Engage

- Title: [I'm new to Yammer and unsure how to engage my team in company-wide discussions. Any advice?](https://www.g2.com/discussions/i-m-new-to-yammer-and-unsure-how-to-engage-my-team-in-company-wide-discussions-any-advice) — 2 comments
  > **Top comment:** "To engage your team on Yammer, start by setting a welcoming tone with introductions and simple icebreaker questions. Tag team members in relevant posts,..."
- Title: [Is yammer any good?](https://www.g2.com/discussions/is-yammer-any-good) — 1 comment
  > **Top comment:** "Yes it’s a great tool for employee communication. "
- Title: [What can yammer be used for?](https://www.g2.com/discussions/what-can-yammer-be-used-for) — 1 comment
  > **Top comment:** "Networking with colleagues"
- Title: [Can i get notifications of when a poll is being answered and the progress made based on the number of users that have submitted their answers to determine percentages of participation?](https://www.g2.com/discussions/can-i-get-notifications-of-when-a-poll-is-being-answered-and-the-progress-made-based-on-the-number-of-users-that-have-submitted-their-answers-to-determine-percentages-of-participation) — 1 comment, 1 upvote
  > **Top comment:** "Yes you can get notifications in your email"
- Title: [Whats the best way to use Yammer is it only for sharing an update or a post?](https://www.g2.com/discussions/30075-whats-the-best-way-to-use-yammer-is-it-only-for-sharing-an-update-or-a-post) — 1 comment
  > **Top comment:** "in the application but the Web interface is not bad at all"

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