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Obsidian vs Inkdrop: catalog facts
Obsidian	Inkdrop
Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…	Paid Commercial app; see the Inkdrop site for current plan prices.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS, Browser extension
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	Markdown editor built around developer workflows Encrypted sync across devices
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	Closed source commercial product Recent focus on AI features may not suit everyone
Downloadable app, Browser extension	Downloadable app, Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is 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.