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Heptabase vs Kinopio: catalog facts
Heptabase	Kinopio
Paid Paid subscription, no permanent free tier mentioned.	Freemium Free for up to 100 cards; more cards require a paid plan.
Windows, macOS, Web	Web, Browser extension
Whiteboard and card format suits visual thinkers and complex research Cross-platform availability across desktop and web	No sign-up needed to start Bulk selection and editing of many cards at once
Paid subscription required to use Visual, card-based workflow takes longer to set up than plain text notes	Free tier limited to 100 cards Freeform canvas suits visual thinkers more than long-form writing
Downloadable app, Web application	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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