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Obsidian vs Beaver Notes: catalog facts
Obsidian	Beaver Notes
Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…	Free Free and open source under the MIT licence, supported by sponsors.
Windows, macOS, Linux, Android, iOS, Browser extension	macOS
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	Notes stay on your device with no account No telemetry or AI features
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	No built-in cloud sync; you arrange syncing yourself Mobile app still in beta
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 1, 2026

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