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 3.60.0

We're always working to improve user experience in Duo Mobile. This update introduces various behind-the-scenes improvements and minor bug fixes to enhance your authentication experience.

We've just begun public preview of our upcoming new UI for Duo Mobile. You can join the public preview by clicking the link here:

Ratings and Reviews

2.0 out of 5
7 Ratings

7 Ratings

pvltlnv ,

IFTTT, LinkedIn still don’t have an icon and considered as third-party

IFTTT, LinkedIn still don’t have an icon and are considered as third-party. Previous workaround (rename them) is acceptable until you have a single account for each unique service type/name - with 2 or more accounts records are identical.

Developer Response ,

Thank you for your feedback! You can edit the account name (currently displayed as your email) by using the steps in this article: I will share your request for a LinkedIn icon with our developers.

kate1141327 ,

Crash via open

Wtf ?! App is crashed , and doesn’t opened!!

lapseta ,

Security checkup issue

Few days ago it starts to report iOS version issue on my iPhone 5s, but I have the latest one

App Privacy

The developer, Duo Security, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

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

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