Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication on your iPhone, iPad, or Apple Watch.

Additionally, you can use Duo Mobile to manage two-factor authentication for other application and web services that make use of passcodes.

Note: For Duo accounts, Duo Mobile needs to be activated and linked to your account before it will work. You will receive an activation link as part of Duo's enrollment process. You may add third-party accounts at any time.

License agreements for third-party Open Source libraries used in Duo Mobile can be found at

What’s New

Version 3.24.2

- Duo Mobile now requires iOS 10 or later
- Minor bug fixes and improvements

Ratings and Reviews

Byranw ,

Experience so far

This app is extremely friendly handling security to a new level, I feel that the way it’s designed with its 1 touch is amazing not going to be looking for another dual-authentication platform for a very very long time, thanks to all who has developed the app/software and keep up the great work!

Developer Response ,

Thanks for the review! We're happy to hear that you like the app.


Duo Security, Inc.
31.5 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.


English, French, German

Age Rating
Rated 4+
© Duo Security, Inc.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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