842 reviews
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Download size

1 MB

Last updated



Works with

  • Windows Phone 8.1
  • Windows Phone 8
  • Windows Phone 7.5

App requires

  • video and still capture
  • data services
  • camera
  • HD720P (720x1280)
  • WVGA (480x800)
  • WXGA (768x1280)
What's this?

Supported languages (44)

Azərbaycan dili (Azərbaycan) Беларуская български Català čeština dansk Deutsch Ελληνικά English English (United States) español eesti suomi Filipino français hrvatski magyar Bahasa Indonesia italiano 日本語 Қазақ 한국어 lietuvių latviešu македонски јазик Bahasa Melayu norsk (bokmål) Nederlands polski português (Brasil) português (Portugal) română русский slovenčina slovenski Shqip srpski svenska ไทย Türkçe українська O'zbekcha 中文(简体) 中文(繁體)
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The Authenticator app generates security codes you can use to help keep your Microsoft account secure. You can add your Microsoft account to the app by scanning a barcode or by manually entering a secret key. The app implements industry-standard security code generation and may also work with other services and providers. You can learn more about keeping your Microsoft account secure at

** The Authenticator app is not supported for use with Windows Azure Multi-Factor Authentication. Use the Mutli Factor Authentication app for this.
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  • by Robert 10/18/2014
    Not able to locate app on phone, sign in is inoperable on this phone.
  • by Cindy 10/17/2014
    It does what it says it does perfectly 😊
  • by Aayush 10/17/2014
    I don't know how to add my mail & other a/c.
  • by Harry 10/17/2014
    It will not allow keys I know to work , other than some very secure ones that are not your business or need to know since this is an unknown site. 👎 SO IS THE KEY THE ONE IN MY MAILBOX? Answer the bloody question. You sods are too bloody arrogant when dealing with people who use your systems. 8 second, delay error? The clock oscillator is a PLL, so is capable of being pulled into synchronized with the NTSP.pool atomic clocks. The android version of the Atomic Clock app made the display keep time with the net, and those internal clocks were 2-5 seconds off. Go copy one of those. ##########$######$######### Update. The clock, which allegedly is being synchronized with the server is now running nearly 13.5 seconds slow. An app, clock synch, appeared out of the blue and is showing the error based upon the ntp.pool atomic clock in the USA. How do you explain that?
  • by krishna 10/17/2014
    The app works great. The only problem I faced is it doesn't let me delete the accounts once added.
  • by Vijayakumar 10/16/2014
    Behind a scan, everything gets completed. Thanks Microsoft
  • by Pierre 10/15/2014
    Perfect! (Please make the tile transparent for Windows Phone 8.1)
  • by Jonathan 10/15/2014
    Glad there's a two factor authentication app on Windows Phone that works.
  • by Colin 10/15/2014
    Total Horse**** waste of time still clueless as to wat this is for. If the phone does not work I shall send it back.
  • by grace 10/15/2014
    Works great every time I've needed to authenticate on my Live email account. Haven't tried on other apps yet.