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Logseq vs Obsidian: catalog facts
Logseq	Obsidian
Freemium The app is free and open source under the AGPL 3.0. Logseq Sync is a paid service, and…	Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS, Browser extension
Notes are plain Markdown files in a folder you control Block-level linking and embedding, not just page links	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
The database version is in beta and the project warns data loss is possible Outliner structure does not suit long-form prose	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	Downloadable app, Browser extension
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 20, 2026

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