
Grammarly

Side-by-side comparison based on pricing, features, and community data.
Grammarly and Otter.ai are both AI productivity tools. Grammarly is Freemium; Otter.ai is Freemium. These tools solve fundamentally different problems.
These tools solve fundamentally different problems. Grammarly is for polishing written communication—emails, documents, social posts—with grammar checks, tone detection, and plagiarism scanning. Otter.ai captures and organizes spoken meetings into searchable transcripts and summaries. Choose Grammarly if your workflow centers on written output and you need real-time writing feedback across multiple platforms. Choose Otter.ai if you attend frequent meetings and need automated note-taking, action item tracking, and a searchable meeting archive. For professionals doing both, consider both tools rather than viewing them as competitors.
Pick Grammarly if you write frequently (emails, documents, social posts) and want real-time grammar, tone, and plagiarism feedback across 500+ apps.
Pick Otter.ai if you attend regular meetings and need automatic transcription, summaries, and searchable meeting records synced to your CRM.
| Feature | Grammarly | Otter.ai |
|---|---|---|
| Primary Use | Written content improvement | Meeting transcription & notes |
| Real-time Detection | Grammar, clarity, tone | Speech-to-text, speakers |
| Integration Breadth | 500+ web apps via browser | Zoom, Teams, Slack, CRM only |
| Plagiarism Check | ✓ Premium tier | — |
| Action Item Automation | — | ✓ Extracts from meetings |
| Mobile Keyboard | ✓ iOS & Android | — |
| Accuracy Risk | Context-dependent false positives | Fails with accents or noise |
| Free Tier Limitation | Advanced features locked | Monthly transcription minutes |
Synthesized by AI from verified tool data · cached per pair


Basic grammar and spell checking
All features including plagiarism detection, tone detection, advanced suggestions
Team collaboration, brand style guides, team analytics
300 monthly transcription minutes, 3 lifetime audio/video file imports, 1 concurrent meeting, 25 most recent conversations
1200 monthly in-app recording minutes, 10 monthly audio/video file imports, 90 mins/meeting, 2 concurrent meetings, unlimited conversation history
Unlimited meetings and in-app recordings, unlimited audio/video file imports, 4 hours/meeting, 3 concurrent meetings
Unlimited custom AI workflows, unlimited meetings, 4 hours/meeting, 3 concurrent meetings, SSO, SCIM, Domain Capture, HIPAA compliance (add-on)