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Microsoft To Do vs Do The Thing: catalog facts
Microsoft To Do	Do The Thing
Free Free to use from Microsoft.	Free Free and open source under the GPL-3.0.
Windows, macOS, Android, iOS, Web	Android
Free with no paid tier needed for the app itself Works with Outlook tasks and Microsoft Planner	Fully local with no account Seven task types including randomized-interval tasks
Closed source and tied to Microsoft's services Most useful for people already in the Microsoft 365 ecosystem	Android only Young project with a small user base
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
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 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.