Microsoft To Do system requirements

Minimum system requirements for Microsoft To Do

iOS: iOS 13

Windows: Windows 10 build 14393

Android: Android OS 7.0

Web: Latest version of Safari, Chrome, Edge, or Firefox

Mac: MacOS 10.14

Any active Microsoft personal account.

The following Microsoft 365 subscriptions include a To Do license: 

Tip: If you're not sure which account your organization has, contact your IT Admin.

In addition to a valid subscription, one of the following Exchange Online licenses is needed for Microsoft To Do to be able to sync user data:

Important: The following are not supported:

Accounts hosted via on-premises installations of Exchange Server.
Government accounts/subscriptions, (Government Community Cloud Moderate accounts can access To Do on the web).
Microsoft 365 Apps for enterprise or Microsoft 365 Apps for business.
Microsoft 365 Germany accounts/subscriptions operated by T-Mobile Systems.
Microsoft 365 China accounts/subscriptions operated by 21Vianet.