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TrustyTodo vs Chiri: catalog facts
TrustyTodo	Chiri
Free Free to download from Flathub; the listing does not specify a charge.	Free Free and open source under the zlib licence.
Linux	Windows, macOS, Linux
Works with CalDAV task servers Supports recurring tasks	Uses the open CalDAV standard instead of a proprietary sync service Cross-platform desktop app
Requires a CalDAV server	Needs a CalDAV server to sync tasks Young project with a small user base
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: Zlib
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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