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Entropy's Defiance vs Todoist: catalog facts
Entropy's Defiance	Todoist
Free Free and open source under the MIT licence.	Freemium Free plan, with a paid Pro upgrade.
Android, Command line	Web, Browser extension
Tasks grouped by five time horizons from today to lifetime Plain JSON storage that syncs with Syncthing	Natural-language task entry Custom filters and labels
Replaces the whole home screen, which not everyone wants Little documentation beyond the repository	Advanced features require Pro Requires an account
Downloadable app	Downloadable app, Web application, Browser extension
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Account needed
Not stated if it 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 September 23, 2026

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