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Notion vs Obsidian: catalog facts
Notion	Obsidian
Freemium Free tier for individuals; paid plans add team features and higher limits.	Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…
Windows, macOS, Android, iOS, Web	Windows, macOS, Linux, Android, iOS, Browser extension
Highly flexible structure covers notes, databases, and project boards in one app Real-time collaboration for team use	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
Flexibility comes with a learning curve to set up well Can feel heavier and slower than single-purpose notes apps	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
Downloadable app, Web application	Downloadable app, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

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