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

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