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Markor vs UpNote: catalog facts
Markor	UpNote
Free Free and open source.	Freemium Free to download, with paid plans listed on the pricing page.
Android	Windows, macOS, Linux, Android, iOS, Browser extension
Edits Markdown, todo.txt and Zim files directly Simple and lightweight	Native apps for all major desktop and mobile systems Rich editor with Markdown, code blocks and attachments
Android only No built-in sync service	Closed source Full feature set depends on a paid plan
Downloadable app	Downloadable app, Browser extension
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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