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Karui ToDo vs Privacy Friendly To-Do List: catalog facts
Karui ToDo	Privacy Friendly To-Do List
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0-or-later licence.
Android	Android
Tiny APK of about 124 kB Never connects to the internet	Deadlines, reminders and subtasks per task Calendar view and urgency colours
Android only Basic task list rather than a full project manager	Android only Maintenance has moved from the original research group to a new maintainer
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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