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Capacities vs Heptabase: catalog facts
Capacities	Heptabase
Freemium Free tier available, with paid plans for additional features.	Paid Paid subscription, no permanent free tier mentioned.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Web
Object and type based structure is a distinct alternative to folder or file hierarchies Native apps across desktop and mobile platforms	Whiteboard and card format suits visual thinkers and complex research Cross-platform availability across desktop and web
Advanced features are gated behind a paid tier Object-based model has a learning curve versus traditional folder notes	Paid subscription required to use Visual, card-based workflow takes longer to set up than plain text notes
Downloadable app, Browser extension	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
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.