Heptabase vs Open Notebook
| Heptabase | Open Notebook | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | $8.99/mo | — |
| Open source | No | No |
| Platforms | Android, iOS, Linux, macOS, Web, Windows | — |
| Free plan | Yes | Yes |
| Paid from | $8.99/user/mo | — |
| Offline access | Yes | — |
| Supported platforms | web, windows, macos, linux, ios, android, chrome_extension | — |
| Note sharing | Yes | — |
| Real-time collaboration | Yes | — |
| Integrations | Readwise, Zotero | OpenAI, Anthropic, Google Gemini, Vertex AI, OpenRouter, Ollama, ElevenLabs, Groq, xAI, Voyage, Mistral, Deepseek |
Both are listed in Best Note-Taking Apps. On Specifiction, Heptabase scores higher on our published basis.