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Tasks.org vs Todoist: catalog facts
Tasks.org	Todoist
Free Free and open source under the GPLv3, supported by donations.	Freemium Free plan, with a paid Pro upgrade.
Android	Web, Browser extension
Many sync backends, including CalDAV and EteSync Works fully offline	Natural-language task entry Custom filters and labels
Desktop version is still in alpha Mainly an Android app	Advanced features require Pro Requires an account
Downloadable app	Downloadable app, Web application, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Account 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 September 23, 2026

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