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Supernotes vs Roam Research: catalog facts
Supernotes	Roam Research
Freemium Free to start, with paid plans for more features.	Paid Paid subscription; current plans are listed on the Roam Research site.
iOS, Web	Web
Notecard format with Markdown and LaTeX Linked cards with a 2D or 3D graph view	Linked notes for building a graph of ideas Outline-style writing that feels like a bulleted list
Requires an account and cloud service Some features, including AI, need a paid plan	Little detail is published on the homepage Proprietary with no open-source version
Downloadable app, Web application, Hosted service	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Account 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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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