Compare software

FreeOTP vs Microsoft Authenticator: catalog facts
FreeOTP	Microsoft Authenticator
Free Free and open source.	Free Free app from Microsoft for Android and iOS.
Android, iOS	Android, iOS
Open source with public repositories for both apps Available on F-Droid as well as Google Play and the App Store	Passwordless sign-in for Microsoft and work accounts Commonly required by employers using Microsoft sign-in
Mobile only, no desktop app Minimal project website with little documentation	Mobile only, with no desktop app Most useful inside the Microsoft account ecosystem
Downloadable app	Downloadable app
Open 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.