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Cosense vs Obsidian: catalog facts
Cosense	Obsidian
Freemium Can be tried directly; organisations contact the developer about rollout and pricing.	Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…
Web	Windows, macOS, Linux, Android, iOS, Browser extension
Quick page creation with bracket links between pages Notes form a linked network rather than a folder tree	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
Hosted service only; notes live on the developer's servers Pricing details for organisations require contacting the developer	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
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 October 2, 2026	Official website Full listing and sources Checked September 20, 2026

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