Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone. Your fingerprint, face ID, or PIN will provide a second layer of security in this two step verification process. After, you'll have access to all your Microsoft products and services, such as Outlook, OneDrive, Office, and more.

Microsoft Authenticator also supports multi factor authentication for work, school, and non-Microsoft accounts. The app provides a second layer of security after your password. When logging in, you'll enter your password, and then you'll be asked for an additional way to prove it's really you. Either approve the notification sent to the Microsoft Authenticator, or enter the verification code generated by the app. 

Sometimes your work or school might ask you to install the Microsoft Authenticator when accessing certain files, emails, or apps. You will need to register your device to your organization through the app and add your work or school account. Microsoft Authenticator also supports cert-based authentication by issuing a certificate on your device. This will let your organization know that the sign-in request is coming from a trusted device and help you seamlessly and securely access additional Microsoft apps and services without needing to log into each. Because Microsoft Authenticator supports single sign-on, once you have proven your identity once, you will not need to log in again to other Microsoft apps on your device.

What's New

Version 5.6.0

We’re always working on new features, bug fixes and performance improvements. Make sure that you stay updated with the latest version for the best authentication experience.

Ratings and Reviews

3.8 out of 5

213 Ratings

213 Ratings

App Crashes on Every Update


I don't know what's exactly the cause of this but every time there's a new app update for this, it always crashes upon opening whenever I open it up after rebooting my iPhone (previously it would go black for couple of seconds and freezes before crashing). It's been going on for 3-4 months now and it's very annoying. Reinstalling it doesn't help either.

However, it is a pretty convenient authenticator app that does what it supposed do. Just wished it doesn't crash every single time these days.

The Gold Standard


If every authentication app worked like this, they might be used more. This app is by far more useful than the Google competitor. Having to use both, since some accounts only work on one or the other, I much prefer to use Microsoft. The simple act of hitting approve or selecting a number makes signing in a breeze. This is what the future of logging in should be like.

Not Necessary!

Bigg dude

This app is really not necessary, that is if you stay on top of your accounts. It eventually gets annoying with the extra steps and starts to be a hindrance. Stay diligent don't become complacent, and don't download this app it's simple as that. This app does what it claims to do and would be very helpful to someone who can not stay focused. To those who are completely aware that remain focused this app is a time consuming step that's avoidable.


Microsoft Corporation
37.2 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Arabic, Basque, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kazakh, Korean, Latvian, Lithuanian, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
Rated 4+
© 2016 Microsoft Corporation. All rights reserved.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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