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Microsoft To Do vs ToDoList: catalog facts
Microsoft To Do	ToDoList
Free Free to use from Microsoft.	Free Free for life, open source under the Eclipse Public License 1.0.
Windows, macOS, Android, iOS, Web	Windows
Free with no paid tier needed for the app itself Works with Outlook tasks and Microsoft Planner	Free with no paid tier Runs as a local desktop application
Closed source and tied to Microsoft's services Most useful for people already in the Microsoft 365 ecosystem	Windows only
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: EPL-1.0
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 September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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