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Tasks.org vs ntodotxt: catalog facts
Tasks.org	ntodotxt
Free Free and open source under the GPLv3, supported by donations.	Free Free and open source under the MIT licence.
Android	Android
Many sync backends, including CalDAV and EteSync Works fully offline	Uses the open todo.txt plain-text format Works locally without any account
Desktop version is still in alpha Mainly an Android app	Android is the only listed platform No hosted sync service of its own
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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