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Capacities vs Roam Research: catalog facts
Capacities	Roam Research
Freemium Free tier available, with paid plans for additional features.	Paid Paid subscription; current plans are listed on the Roam Research site.
Windows, macOS, Linux, Android, iOS, Browser extension	Web
Object and type based structure is a distinct alternative to folder or file hierarchies Native apps across desktop and mobile platforms	Linked notes for building a graph of ideas Outline-style writing that feels like a bulleted list
Advanced features are gated behind a paid tier Object-based model has a learning curve versus traditional folder notes	Little detail is published on the homepage Proprietary with no open-source version
Downloadable app, Browser extension	Web application, Hosted service
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 23, 2026

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