
Heptabase

Side-by-side comparison based on pricing, features, and community data.
Heptabase and Otter.ai are both AI productivity tools. Heptabase is Paid; Otter.ai is Freemium. These tools serve fundamentally different needs and shouldn't be compared directly.
These tools serve fundamentally different needs and shouldn't be compared directly. Heptabase is a visual knowledge management system for organizing research, ideas, and learning over time through spatial whiteboards and atomic cards. Otter.ai is a meeting transcription and summarization assistant that captures spoken conversations into searchable records. Pick Heptabase if you're building a personal knowledge base or researching complex topics visually. Pick Otter.ai if you need to record, transcribe, and extract action items from meetings. The only overlap is search functionality—both index their content—but their input sources (manual notes vs. live audio) and use cases are distinct.
Pick Heptabase if you're a researcher, student, or knowledge worker who thinks visually and wants to spatially organize ideas, PDFs, and video highlights into a connected knowledge base.
Pick Otter.ai if you attend frequent meetings and need automatic transcription, summaries, and action item tracking across Zoom, Teams, or Google Meet.
| Feature | Heptabase | Otter.ai |
|---|---|---|
| Primary Input | Manual notes, PDFs, videos | Live audio (meetings) |
| Free Tier | 7-day trial only | Freemium with monthly limits |
| Real-time Collaboration | Minimal / single-user focus | ✓ Live sharing & multi-user |
| Mobile Support | iOS only | iOS + Android |
| Auto-Summarization | — | ✓ AI-generated summaries |
| Visual Spatial Organization | ✓ Whiteboards & cards | — |
| Video Annotation | ✓ Native support | — |
| CRM/Workflow Integrations | Limited (Readwise, Calendar) | ✓ Salesforce, HubSpot, Slack |
Synthesized by AI from verified tool data · cached per pair


Full access for individual users
Full access, billed annually
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)