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Tasks.org vs Chiri: catalog facts
Tasks.org	Chiri
Free Free and open source under the GPLv3, supported by donations.	Free Free and open source under the zlib licence.
Android	Windows, macOS, Linux
Many sync backends, including CalDAV and EteSync Works fully offline	Uses the open CalDAV standard instead of a proprietary sync service Cross-platform desktop app
Desktop version is still in alpha Mainly an Android app	Needs a CalDAV server to sync tasks Young project with a small user base
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Zlib
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.