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Fossify Notes vs Markor: catalog facts
Fossify Notes	Markor
Free Free and open source, with no ads.	Free Free and open source.
Android	Android
Very simple text field for fast note entry Supports checklists as well as text notes	Edits Markdown, todo.txt and Zim files directly Simple and lightweight
Android only Not designed for large, structured note collections	Android only No built-in sync service
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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