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 3.31.0

- Minor bug fixes and improvements.

Ratings and Reviews

2.6 out of 5
12 Ratings

12 Ratings

dirtymouse ,

works well

works well

would like an ipad compatible version (landscape mode)

latest update is a bit ugly, I've lost my icon as well, just the white wire frame icon.

it's unclear on the website or in the app, but does duo mobile backup to iCloud?

what happened if I delete it accidentally, or need to restore, are all my OTP service tokens restored or lost forever, requiring recovery keys for all the services in use?

FuttBuckerTheElf ,

Too complicated

Signing up with the program is a hassle within itself, not to mention the complications with the poor interface design.

But hey, at least it supports dark mode…

MyNameIs-URL ,

Works with Apple Watch

This is an excellent App.

I leave it open in the background on my iphone x and have duo in my dock on my apple watch s3 and generate codes without having to pickup my phone, which is great.

I wouldn't use another 2FA app.


Duo Security, Inc.
27.7 MB

Requires iOS 11.0 and watchOS 2.0 or later. Compatible with iPhone, iPad and iPod touch.


English, French, German

Age Rating


  • Family Sharing

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

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