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OpenTodoList vs Errands: catalog facts
OpenTodoList	Errands
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Android, iOS	Linux
Local-first with plain file-based storage Sync via Nextcloud, ownCloud, WebDAV or Dropbox	Sync with Nextcloud and other CalDAV servers Sub-tasks and multiple task lists
No hosted sync service of its own Simpler than dedicated task managers for complex projects	Linux only Deliberately simple, with few project-management features
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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