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Obsidian vs SoloMD: catalog facts
Obsidian	SoloMD
Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…	Free Free under the MIT licence with no paid tier, subscription or ads.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS
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	Live preview editing with PDF and Word export Native apps on five platforms, including iOS and Android
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	AI features need your own API key from a provider Young project with a fast-changing feature set
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 2, 2026

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