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Obsidian vs Supernotes: catalog facts
Obsidian	Supernotes
Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…	Freemium Free to start, with paid plans for more features.
Windows, macOS, Linux, Android, iOS, Browser extension	iOS, Web
Notes are plain Markdown files in a folder you control, readable without the app Linking, backlinks, tags, graph view and fast search across the vault	Notecard format with Markdown and LaTeX Linked cards with a 2D or 3D graph view
The application is not open source, only the plugin ecosystem and the releases repository Syncing between devices means paying for Obsidian Sync or wiring up your own sync tool	Requires an account and cloud service Some features, including AI, need a paid plan
Downloadable app, Browser extension	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

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