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Tasks.org vs Entropy's Defiance: catalog facts
Tasks.org	Entropy's Defiance
Free Free and open source under the GPLv3, supported by donations.	Free Free and open source under the MIT licence.
Android	Android, Command line
Many sync backends, including CalDAV and EteSync Works fully offline	Tasks grouped by five time horizons from today to lifetime Plain JSON storage that syncs with Syncthing
Desktop version is still in alpha Mainly an Android app	Replaces the whole home screen, which not everyone wants Little documentation beyond the repository
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it 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.