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Compare Otter.ai and Slack 
Featured Products
At a Glance
Market Segments
Small-Business (73.7% of reviews)
Small-Business (41.2% of reviews)
Entry-Level Pricing
Free 1 User
$0.00
Otter.ai
Star Rating
(446)4.4 out of 5
Market Segments
Small-Business (73.7% of reviews)
Pros & Cons
Entry-Level Pricing
Free 1 User
Browse all 4 pricing plansSlack
Star Rating
(37,750)4.5 out of 5
Market Segments
Small-Business (41.2% of reviews)
Pros & Cons
Entry-Level Pricing
$0.00
Browse all 4 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- G2 reviewers report that Slack excels in overall user satisfaction, boasting a significantly higher G2 Score compared to Otter.ai. Users appreciate its seamless workflow and effective communication features, with one reviewer noting, "This is a great platform for connecting with my team, and the workflow was seamless."
- Users say that Slack's extensive integrations enhance its usability, making it a preferred choice for teams looking to optimize their communication. Reviewers highlight the ease of use and the many integrations available, stating, "I really appreciate the many integrations it offers."
- According to verified reviews, Otter.ai shines in its note-taking and transcription capabilities, particularly for meetings. Users find its meeting summaries and detailed notes to be quite useful, with one user mentioning, "The meeting summary that it provides is quite useful."
- Reviewers mention that while both platforms are easy to set up, Slack's implementation process is often described as more intuitive. Users have praised its quick onboarding, with comments like, "The initial setup was super easy."
- G2 reviewers highlight that Otter.ai is particularly beneficial for small businesses, as it offers a free entry-level price point. This makes it accessible for teams looking for effective note-taking solutions without a financial commitment, with users noting, "I like that Otter.ai is very easy to use and seamlessly joins meetings."
- Users report that while Slack is a robust collaboration tool, Otter.ai's focus on AI-powered features, such as smart notifications and action item extraction, provides unique advantages for users who prioritize meeting productivity. One reviewer stated, "It's really helpful to capture screenshots of ...," emphasizing its utility in fast-paced environments.
Pricing
Entry-Level Pricing
Otter.ai
Basic
Free
1 User
For those who want to give it a try
- Zoom, MS Teams, and Google Meet
- AI Chat within and across meetings
- AI meeting workflows
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
Otter.ai
Free Trial is available
Slack
Free Trial is available
Ratings
Meets Requirements
8.7
374
9.2
30,920
Ease of Use
9.0
379
9.1
31,789
Ease of Setup
9.0
273
9.1
8,192
Ease of Admin
8.6
89
8.9
4,984
Quality of Support
8.4
240
8.8
21,480
Has the product been a good partner in doing business?
8.6
82
9.0
4,463
Product Direction (% positive)
8.8
363
8.7
30,235
Features by Category
Lead Facilitation
Feature Not Available
Not enough data
6.1
67
Not enough data
Feature Not Available
Not enough data
6.8
16
Not enough data
Organization
Feature Not Available
Not enough data
8.4
67
Not enough data
7.6
17
Not enough data
Performance Analysis
6.6
68
Not enough data
6.8
67
Not enough data
Sales Analysis
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Generative AI
8.1
61
Not enough data
8.6
60
Not enough data
Agentic AI - AI Sales Assistant
8.6
6
Not enough data
8.6
6
Not enough data
8.9
6
Not enough data
8.6
6
Not enough data
8.3
6
Not enough data
8.3
6
Not enough data
8.6
6
Not enough data
Business Instant Messaging
Feature Not Available
9.1
13847
8.9
11
9.0
14384
8.2
11
8.6
13707
Business Instant Messaging
Feature Not Available
8.5
10168
Feature Not Available
8.1
9502
Business Instant Messaging
8.2
11
9.1
13599
8.3
12
9.2
13239
8.5
11
9.0
11734
Generative AI - Business Instant Messaging
9.3
5
7.5
1475
AI - Business Instant Messaging
9.7
5
7.5
1461
9.7
5
7.9
1467
8.7
5
7.4
1445
9.0
5
7.4
1446
Agentic AI - Business Instant Messaging
Not enough data
7.6
868
Not enough data
7.6
861
Call Analytics
8.7
89
Not enough data
8.3
88
Not enough data
8.5
86
Not enough data
7.5
22
Not enough data
Agent Performance Management
7.7
74
Not enough data
8.7
82
Not enough data
8.6
81
Not enough data
Generative AI
8.7
78
Not enough data
Agentic AI - Conversation Intelligence
8.2
23
Not enough data
8.2
23
Not enough data
8.0
23
Not enough data
8.3
23
Not enough data
8.3
22
Not enough data
8.2
22
Not enough data
7.7
22
Not enough data
Setup
Not enough data
9.0
665
Not enough data
8.9
656
Not enough data
8.6
643
Not enough data
8.9
665
Management
Not enough data
8.9
649
Not enough data
8.6
635
Not enough data
8.9
647
Generative AI
Not enough data
7.7
553
Agentic AI - Workflow Management
Not enough data
7.6
271
Not enough data
7.9
267
Not enough data
8.0
274
Not enough data
7.8
272
Not enough data
7.9
271
Not enough data
7.8
271
Not enough data
8.0
271
Account Options
Not enough data
9.1
266
Not enough data
8.3
265
Not enough data
8.6
257
Not enough data
8.6
261
Not enough data
8.9
266
Not enough data
8.8
262
Q&A Tools
Not enough data
9.0
265
Not enough data
9.0
263
Not enough data
9.1
267
Not enough data
8.6
257
Not enough data
9.0
262
Not enough data
8.8
258
Not enough data
8.5
254
Not enough data
8.8
255
Not enough data
8.4
253
Knowledge Pages
Not enough data
8.4
324
Not enough data
8.2
327
Not enough data
8.0
316
Not enough data
8.0
313
Not enough data
7.9
310
Not enough data
8.3
311
Knowledge Dissemination
Not enough data
8.1
305
Not enough data
8.7
310
Not enough data
8.9
312
Not enough data
8.9
313
Not enough data
8.3
309
Not enough data
8.2
302
Not enough data
8.6
314
Not enough data
8.6
303
Not enough data
8.5
300
Agentic AI - Knowledge Base
Not enough data
7.8
183
Not enough data
7.8
185
Not enough data
7.7
182
Login Options
Not enough data
9.0
739
Not enough data
8.5
721
Productivity
Not enough data
8.0
703
Not enough data
8.3
708
Not enough data
8.6
713
Not enough data
7.8
690
Not enough data
7.9
687
Customization
Not enough data
8.5
705
Not enough data
9.0
719
Not enough data
8.6
695
Agentic AI - Unified Workspaces
Not enough data
7.4
387
Not enough data
7.5
385
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
8.3
49
Not enough data
8.1
46
Not enough data
8.7
47
Not enough data
8.3
47
Not enough data
8.4
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
8.5
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
8.8
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
9.0
13
Not enough data
8.7
13
Not enough data
8.5
14
Not enough data
8.9
14
Voice
8.5
184
Not enough data
8.0
195
Not enough data
Transcription
7.7
192
Not enough data
8.7
179
Not enough data
7.9
157
Not enough data
7.3
159
Not enough data
Editing
8.1
171
Not enough data
Feature Not Available
Not enough data
7.9
175
Not enough data
Feature Not Available
Not enough data
Integration
7.9
156
Not enough data
7.6
52
Not enough data
8.3
168
Not enough data
7.8
149
Not enough data
8.0
159
Not enough data
Agentic AI - Transcription
8.4
50
Not enough data
8.2
49
Not enough data
7.9
48
Not enough data
Automation
Not enough data
8.8
1174
Not enough data
8.8
1144
Not enough data
8.5
1124
Administration
Not enough data
8.8
1141
Not enough data
8.6
1106
Not enough data
9.4
1166
Project management
Not enough data
8.7
1126
Not enough data
8.5
1096
Not enough data
8.5
1113
Not enough data
8.5
1102
Not enough data
8.5
1097
Not enough data
8.3
1072
Not enough data
8.2
1091
Workload
Not enough data
8.4
1061
Not enough data
8.8
1099
Not enough data
8.6
1063
Not enough data
8.4
1055
Communication & Collaboration
Not enough data
9.3
1215
Not enough data
9.0
1122
Not enough data
9.3
1182
Cost Management
Not enough data
8.0
1045
Not enough data
8.1
1045
Not enough data
8.1
1040
Integration
Not enough data
8.6
1062
Not enough data
8.4
1044
Not enough data
8.4
1033
Generative AI
Not enough data
7.5
991
Not enough data
7.6
988
Agentic AI - Work Management
Not enough data
7.6
494
Not enough data
7.7
490
Not enough data
8.0
491
Not enough data
7.7
491
Communication
Not enough data
9.4
1112
Not enough data
9.3
1098
Not enough data
8.8
1025
Not enough data
8.9
1016
Not enough data
9.1
1017
Content & Documents
Not enough data
9.1
1055
Not enough data
8.9
1018
Not enough data
8.7
1031
Not enough data
8.1
980
Controls
Not enough data
8.3
970
Not enough data
8.1
966
Not enough data
8.6
973
Not enough data
8.4
973
Not enough data
8.1
954
Project Management
Not enough data
8.4
969
Not enough data
8.3
955
Not enough data
8.5
964
Not enough data
8.6
960
Remote Collaboration
Not enough data
9.0
977
Not enough data
8.7
951
Not enough data
8.9
967
Not enough data
7.8
944
Generative AI
Not enough data
7.2
905
Not enough data
7.3
901
Agentic AI - Project Collaboration
Not enough data
7.4
418
Not enough data
7.6
420
Meeting Prep - AI Meeting Assistants
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Feature Not Available
Not enough data
Meeting Automation - AI Meeting Assistants
8.9
178
Not enough data
8.0
175
Not enough data
8.4
176
Not enough data
Meeting Insights - AI Meeting Assistants
8.0
169
Not enough data
7.7
169
Not enough data
8.7
174
Not enough data
Accessibility - AI Meeting Assistants
Feature Not Available
Not enough data
8.6
171
Not enough data
Feature Not Available
Not enough data
Agentic AI - AI Meeting Assistants
8.3
84
Not enough data
7.9
83
Not enough data
7.9
86
Not enough data
8.0
83
Not enough data
Deployment & Integration - Voice Recognition
8.5
17
Not enough data
7.5
16
Not enough data
8.5
17
Not enough data
8.9
17
Not enough data
Performance Optimization - Voice Recognition
8.0
17
Not enough data
8.6
16
Not enough data
8.1
16
Not enough data
8.0
15
Not enough data
8.8
15
Not enough data
Security & Compliance - Voice Recognition
8.7
15
Not enough data
8.6
15
Not enough data
8.6
15
Not enough data
Advanced AI & Biometric Features - Voice Recognition
7.7
15
Not enough data
8.1
15
Not enough data
8.1
16
Not enough data
7.2
16
Not enough data
Agentic AI - Voice Recognition
8.4
15
Not enough data
Agentic AI - Note-Taking Software
9.0
28
Not enough data
Agentic AI - Audio Conferencing
Not enough data
7.3
265
Not enough data
7.5
265
Action Item Detection - AI Note-taking Software
8.5
63
8.5
9
8.9
63
8.9
9
Automatic Transcription - AI Note-taking Software
8.7
65
9.3
10
Collaboration & Sharing - AI Note-taking Software
8.3
61
9.1
9
Language & Accent Support - AI Note-taking Software
7.6
62
9.0
10
Multi-Platform Integration - AI Note-taking Software
7.8
63
8.7
10
Privacy & Security Controls - AI Note-taking Software
8.1
59
8.6
11
Searchable Note Archives - AI Note-taking Software
8.2
63
8.3
9
Speaker Identification - AI Note-taking Software
7.9
65
8.8
10
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
Otter.ai and Slack are categorized as AI Note-Taking Software and Business Instant Messaging
Unique Categories
Otter.ai is categorized as Transcription, Conversation Intelligence, AI Sales Assistant, Note-Taking Software, Voice Recognition, and AI Meeting Assistants
Slack is categorized as Knowledge Base, Unified Workspaces, Work Management, Enterprise Search Software, Q&A Platforms, Project Collaboration, Workflow Management, and Audio Conferencing
Reviews
Reviewers' Company Size
Otter.ai
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
Marketing and Advertising
11.4%
Computer Software
11.4%
Consulting
7.1%
Information Technology and Services
7.1%
Higher Education
5.0%
Other
58.1%
Computer Software
15.3%
Information Technology and Services
13.1%
Marketing and Advertising
8.6%
Internet
4.7%
Education Management
3.3%
Other
55.0%
Discussions
What is Otter.ai used for?
2 Comments
AN
TranscriptionRead more
What does otter AI do?
2 Comments
FT
Otter.ai is an artificial intelligence transcription service that automatically creates text transcriptions of online meetings and audio recordings.Read more
Custom vocabulary
1 Comment
RD
Hello! I wanted to let you know that Equal Time (www.equaltime.io) offers Custom vocab (up to 1000 words or phrases). So you can add special tango terms as...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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