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Step Two vs Microsoft Authenticator: catalog facts
Step Two	Microsoft Authenticator
Paid Sold through the App Store and Mac App Store and included in the Setapp subscription.	Free Free app from Microsoft for Android and iOS.
macOS, iOS, Browser extension	Android, iOS
iCloud backup and sync across Apple devices Apple Watch app and Safari extension	Passwordless sign-in for Microsoft and work accounts Commonly required by employers using Microsoft sign-in
Apple platforms only Sync depends on iCloud	Mobile only, with no desktop app Most useful inside the Microsoft account ecosystem
Downloadable app, Browser extension	Downloadable app
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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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