Duo Mobile 4+

Security made simple

Duo Security LLC

    • Free


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 https://www.duosecurity.com/legal/open-source-licenses.

What’s New

Version 4.59.0

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.

Ratings and Reviews

4.8 out of 5
32.8K Ratings

32.8K Ratings

jaykaee ,

Simple, quick, painless, just one suggestion :)

Could there be an option? To enable a second notification, warning when there are e.g. 10 seconds to verify before it the request is dropped.

SiMov007 ,

A little bit annoying

If you time out it gets very tricky to close and restart your computer. Also, the app stays on the screen once it’s been okay’s which can be annoying - this happened once when I was using my phone as a satnat; someone maybe trying to access my device, fine, and it wasn’t okay’d, but then I had to find a service station to close the app and let my satnat continue - so once you’ve interacted with the app it should just close and go away, and there need to be a better system if it times out so you’re not just stuck.

The Raffoh ,


Does sounds when notifications comes

App Privacy

The developer, Duo Security LLC, 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

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