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