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Chiri vs Errands: catalog facts
Chiri	Errands
Free Free and open source under the zlib licence.	Free Free and open source under the MIT license.
Windows, macOS, Linux	Linux
Uses the open CalDAV standard instead of a proprietary sync service Cross-platform desktop app	Sync with Nextcloud and other CalDAV servers Sub-tasks and multiple task lists
Needs a CalDAV server to sync tasks Young project with a small user base	Linux only Deliberately simple, with few project-management features
Downloadable app	Downloadable app
Open source	Open source
License: Zlib	License: MIT
Not stated if an account is 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 1, 2026

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