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Things 3 vs Microsoft To Do: catalog facts
Things 3	Microsoft To Do
Paid One-time purchase, priced separately for Mac, iPhone and iPad.	Free Free to use from Microsoft.
macOS, iOS	Windows, macOS, Android, iOS, Web
Clean, well-regarded design Quick to learn	Free with no paid tier needed for the app itself Works with Outlook tasks and Microsoft Planner
Apple platforms only Each platform version is bought separately	Closed source and tied to Microsoft's services Most useful for people already in the Microsoft 365 ecosystem
Downloadable app	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
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 September 23, 2026

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