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At a Glance
Market Segments
Mid-Market (37.5% of reviews)
Small-Business (41.1% of reviews)
Entry-Level Pricing
$0.00
$0.00
Mattermost
Star Rating
(356)4.3 out of 5
Market Segments
Mid-Market (37.5% of reviews)
Pros & Cons
Entry-Level Pricing
$0.00
Browse all 3 pricing plansSlack
Star Rating
(37,455)4.5 out of 5
Market Segments
Small-Business (41.1% of reviews)
Pros & Cons
Entry-Level Pricing
$0.00
Browse all 4 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- Users report that Slack excels in instant messaging with a score of 9.5, highlighting its user-friendly interface and seamless integration with other tools, making communication effortless. In contrast, Mattermost, while still strong at 9.1, is noted for its self-hosting capabilities, which some users find adds complexity to the user experience.
- Reviewers mention that Slack's ease of setup is rated at 9.0, with many appreciating the quick onboarding process. Mattermost, however, has a lower score of 8.1, with users indicating that the initial setup can be more challenging, especially for teams without dedicated IT support.
- G2 users highlight Slack's superior quality of support, scoring 8.8, with many praising the responsiveness and helpfulness of the support team. Mattermost, with a score of 8.3, has received mixed reviews, with some users expressing frustration over slower response times.
- Users on G2 report that Slack's file sharing feature is rated at 9.1, with reviewers appreciating the ease of sharing documents and collaborating in real-time. Mattermost's file sharing, rated at 8.7, is still effective but lacks some of the intuitive features that Slack users enjoy.
- Reviewers mention that Slack's mobile application is rated highly at 9.1, making it easy for users to stay connected on the go. Mattermost's mobile app, rated at 8.1, has been criticized for not being as robust or user-friendly, which can hinder productivity for remote teams.
- Users say that Slack's integration capabilities score 9.0, allowing for a wide range of third-party applications that enhance functionality. Mattermost, while offering integrations at a score of 8.4, is often seen as less versatile, which can limit workflow customization for some teams.
Pricing
Entry-Level Pricing
Mattermost
Starter
$0.00
Increased productivity for small teams
- Unlimited 1:1 and group messaging
- Unlimited users, channels, teams
- Unlimited boards
Slack
Free
$0.00
For teams wanting to try out Slack for an unlimited period of time
- 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
Free Trial
Mattermost
Free Trial is available
Slack
Free Trial is available
Ratings
Meets Requirements
8.7
295
9.2
30,730
Ease of Use
8.8
300
9.1
31,539
Ease of Setup
8.1
90
9.1
7,954
Ease of Admin
8.3
69
8.9
4,962
Quality of Support
8.2
226
8.8
21,313
Has the product been a good partner in doing business?
9.0
58
9.0
4,441
Product Direction (% positive)
8.4
289
8.7
30,044
Features by Category
Business Instant Messaging
8.7
193
9.1
13792
8.7
200
9.0
14299
8.0
188
8.6
13656
Business Instant Messaging
7.8
118
8.5
10135
7.9
111
8.1
9480
Business Instant Messaging
8.1
175
9.1
13564
9.0
188
9.2
13218
8.3
162
9.0
11670
Generative AI - Business Instant Messaging
4.9
15
7.5
1468
AI - Business Instant Messaging
5.3
15
7.5
1457
6.1
14
7.9
1459
4.6
14
7.4
1441
5.7
14
7.4
1442
Agentic AI - Business Instant Messaging
5.9
11
7.6
863
5.3
11
7.6
857
Setup
8.5
20
9.0
654
8.8
20
8.9
646
7.9
20
8.6
635
8.6
20
8.9
647
Management
8.7
19
9.0
642
8.0
19
8.6
629
8.1
20
8.9
635
Generative AI
6.9
12
7.7
549
Agentic AI - Workflow Management
Not enough data
7.6
268
Not enough data
7.9
264
Not enough data
8.0
271
Not enough data
7.8
269
Not enough data
7.9
268
Not enough data
7.8
268
Not enough data
8.0
268
Account Options
Not enough data
9.1
267
Not enough data
8.3
266
Not enough data
8.6
258
Not enough data
8.6
262
Not enough data
8.9
266
Not enough data
8.8
263
Q&A Tools
Not enough data
9.0
266
Not enough data
9.0
264
Not enough data
9.1
268
Not enough data
8.6
258
Not enough data
9.0
263
Not enough data
8.8
259
Not enough data
8.5
255
Not enough data
8.8
256
Not enough data
8.4
254
Knowledge Pages
Not enough data
8.4
322
Not enough data
8.3
326
Not enough data
8.0
315
Not enough data
8.0
312
Not enough data
7.9
309
Not enough data
8.3
310
Knowledge Dissemination
Not enough data
8.2
304
Not enough data
8.7
309
Not enough data
8.9
310
Not enough data
8.9
310
Not enough data
8.3
306
Not enough data
8.2
301
Not enough data
8.6
308
Not enough data
8.6
301
Not enough data
8.6
299
Agentic AI - Knowledge Base
Not enough data
7.8
182
Not enough data
7.8
183
Not enough data
7.7
181
Login Options
Not enough data
9.0
733
Not enough data
8.4
716
Productivity
Not enough data
8.0
700
Not enough data
8.2
704
Not enough data
8.5
707
Not enough data
7.8
686
Not enough data
7.9
683
Customization
8.9
19
8.5
696
Not enough data
9.0
709
Not enough data
8.6
688
Agentic AI - Unified Workspaces
Not enough data
7.4
385
Not enough data
7.5
383
Compatibility
Not enough data
8.9
80
Not enough data
8.9
83
Not enough data
8.8
78
Agentic AI - Enterprise Search Software
Not enough data
8.2
49
Not enough data
8.1
46
Not enough data
8.7
47
Not enough data
8.3
47
Not enough data
8.3
47
Not enough data
8.4
45
Search Queries
Not enough data
8.6
79
Not enough data
9.0
78
Not enough data
8.6
78
Not enough data
8.9
79
Not enough data
8.8
76
AI powered search - Enterprise Search Software
Not enough data
8.5
13
Not enough data
8.6
13
Not enough data
8.3
13
Functionality
Not enough data
8.8
78
Not enough data
8.9
77
Not enough data
9.0
80
Compatibility - Enterprise Search Software
Not enough data
8.9
15
Not enough data
8.7
13
Not enough data
8.9
14
Functionality - Enterprise Search Software
Not enough data
8.8
14
Not enough data
9.1
13
Not enough data
9.0
14
Search Queries - Enterprise Search Software
Not enough data
8.8
13
Not enough data
8.6
13
Not enough data
8.3
14
Not enough data
8.9
14
Automation
Not enough data
8.8
1138
Not enough data
8.7
1125
Not enough data
8.5
1100
Administration
Not enough data
8.8
1120
Not enough data
8.6
1090
Not enough data
9.4
1126
Project management
Not enough data
8.7
1104
Not enough data
8.5
1083
Not enough data
8.5
1094
Not enough data
8.5
1088
Not enough data
8.5
1082
Not enough data
8.3
1059
Not enough data
8.2
1076
Workload
Not enough data
8.3
1048
Not enough data
8.8
1072
Not enough data
8.6
1050
Not enough data
8.4
1041
Communication & Collaboration
Not enough data
9.2
1092
Not enough data
9.0
1083
Not enough data
9.3
1089
Cost Management
Not enough data
8.0
1032
Not enough data
8.1
1032
Not enough data
8.1
1028
Integration
Not enough data
8.6
1041
Not enough data
8.4
1033
Not enough data
8.4
1020
Generative AI
Not enough data
7.5
981
Not enough data
7.6
978
Agentic AI - Work Management
Not enough data
7.6
484
Not enough data
7.7
481
Not enough data
8.0
480
Not enough data
7.7
482
Communication
Not enough data
9.4
1064
Not enough data
9.3
1055
Not enough data
8.8
1009
Not enough data
8.9
1003
Not enough data
9.1
1005
Content & Documents
Not enough data
9.1
1028
Not enough data
8.9
1009
Not enough data
8.7
1013
Not enough data
8.1
971
Controls
Not enough data
8.3
960
Not enough data
8.1
958
Not enough data
8.6
963
Not enough data
8.4
964
Not enough data
8.2
945
Project Management
Not enough data
8.4
957
Not enough data
8.3
947
Not enough data
8.5
950
Not enough data
8.6
948
Remote Collaboration
Not enough data
9.0
963
Not enough data
8.7
942
Not enough data
8.9
959
Not enough data
7.8
935
Generative AI
Not enough data
7.2
896
Not enough data
7.3
895
Agentic AI - Project Collaboration
Not enough data
7.4
414
Not enough data
7.6
416
Agentic AI - Audio Conferencing
Not enough data
7.3
263
Not enough data
7.5
263
Action Item Detection - AI Note-taking Software
Not enough data
8.3
8
Not enough data
8.8
8
Automatic Transcription - AI Note-taking Software
Not enough data
9.1
9
Collaboration & Sharing - AI Note-taking Software
Not enough data
9.0
8
Language & Accent Support - AI Note-taking Software
Not enough data
8.9
9
Multi-Platform Integration - AI Note-taking Software
Not enough data
8.7
9
Privacy & Security Controls - AI Note-taking Software
Not enough data
8.5
10
Searchable Note Archives - AI Note-taking Software
Not enough data
8.1
8
Speaker Identification - AI Note-taking Software
Not enough data
8.7
9
Communication
8.5
20
Not enough data
8.8
20
Not enough data
8.7
19
Not enough data
Planning
9.6
19
Not enough data
9.6
19
Not enough data
8.6
19
Not enough data
8.9
19
8.5
696
8.6
19
Not enough data
Workflow Management
8.9
19
Not enough data
9.0
19
Not enough data
9.0
18
Not enough data
8.4
18
Not enough data
Knowledge Base
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Security
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Content
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Communication
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Categories
Categories
Shared Categories
Mattermost and Slack are categorized as Workflow Management and Business Instant Messaging
Unique Categories
Mattermost is categorized as Product Management
Slack is categorized as Knowledge Base, Unified Workspaces, Work Management, Enterprise Search Software, Q&A Platforms, AI Note-Taking Software, Project Collaboration, and Audio Conferencing
Reviews
Reviewers' Company Size
Mattermost
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Slack
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Information Technology and Services
20.2%
Computer Software
14.1%
Financial Services
4.7%
Computer & Network Security
4.1%
Internet
3.8%
Other
53.1%
Computer Software
15.3%
Information Technology and Services
13.0%
Marketing and Advertising
8.5%
Internet
4.7%
Education Management
3.3%
Other
55.0%
Discussions
What is Mattermost used for?
3 Comments
BB
Mattermost mostly used as professional communication platform like slack. But it is open-source.Read more
when are you going to improve its UI?
2 Comments
CG
They won’t, I had the same problem and nothingRead more
Is Mattermost secure?
2 Comments
BB
yes, absolutely. It is open source and trusted by millions of users and thousand of brands.Read more
How do I delete a channel in slack?
47 Comments
CH
Since this has already been answered, my $0.02 is that you should always archive channels rather than delete them for posterity and/or auditing purposes.Read more
What does slack software do?
28 Comments
RR
Slack is messaging and communication platform which allow an individual for video and audio calls and many more.Read more
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