Microsoft Authenticator
FreeMicrosoft's authenticator app for one-time codes and push approvals, with cloud account backup.
About Microsoft Authenticator
Microsoft Authenticator is an app for Android and iOS that helps you sign in securely to Microsoft accounts and other online services. It supports push-notification approval for Microsoft accounts and time-based one-time codes for services that use the standard.
Besides two-step verification, it can act as a passwordless sign-in method for Microsoft accounts, supports work and school accounts managed by an organisation's administrator and backs up account data to the cloud so it can be restored on a new phone. Microsoft has also built password and passkey features into the app, and has changed some of them over time, so features can differ between versions.
It suits people who use Microsoft 365, Outlook or Azure and anyone who wants a free authenticator with cloud backup. The app is free and shows no ads, and the stores list no in-app purchases. It needs a Microsoft account for backup and some features. Organisations often require it for work sign-in. If you only need basic codes for non-Microsoft sites, a simpler authenticator will do.
Essential if your employer asks for it. Turn on backup before changing phones.
Version history
1 release tracked- iOS: Bug fixes and performance improvements
Frequently asked
Is Microsoft Authenticator free?
Yes. It is free.
Do I need a Microsoft account?
Only for cloud backup and Microsoft sign-in features, not for basic codes.
Which platforms are supported?
Android and iOS.
Where does the download link go?
Directly to microsoft.com or the official app store for your platform. PlanetSofts never rehosts installers or adds wrappers, and these links were last verified Oct 6, 2026.