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Heptabase vs AFFiNE Community: catalog facts
Heptabase	AFFiNE Community
Paid Paid subscription, no permanent free tier mentioned.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Web	Windows, macOS, Linux, Self-hosted, Web
Whiteboard and card format suits visual thinkers and complex research Cross-platform availability across desktop and web	Offers a self-hostable community edition with linked workspace content.
Paid subscription required to use Visual, card-based workflow takes longer to set up than plain text notes	Cloud services and enterprise offerings have separate terms.
Downloadable app, Web application	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.