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ntodotxt vs sleek: catalog facts
ntodotxt	sleek
Free Free and open source under the MIT licence.	Free Free and open source.
Android	Windows, macOS, Linux
Uses the open todo.txt plain-text format Works locally without any account	Tasks kept in plain todo.txt files you own Runs on Linux, Windows and macOS
Android is the only listed platform No hosted sync service of its own	Limited to what the todo.txt format can express
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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