4.8
79.5K reviews
10M+
Downloads
Content rating
PEGI 3
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About this app

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.

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

Duo Mobile also has a companion app for Wear OS, Duo Wear, making secure authentication even more convenient on your smartwatch.

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.

Additionally, we will request access to use your camera for the sole purpose of scanning QR codes when activating accounts. Accounts can be activated by other methods if you choose not to do so.

License agreements for third-party Open Source libraries used in Duo Mobile can be found at https://www.duosecurity.com/legal/open-source-licenses.

For the latest Terms and Conditions see https://duo.com/legal/terms.
Updated on
Apr 21, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
78.1K reviews
Adam Foster
March 12, 2025
It works well, but the browser update notification removes value from the app. For example, if you have an up to date non-chromium browser, it will tell you to update chrome, even when it is up to date. This is a constant annoyance and has zero value for people who know how a browser works, especially when you have to see it multiple times a day on multiple devices and browsers. If you add a method to ignore future messages of this kind to device, it will greatly improve the sign-in experience.
7 people found this review helpful
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Sam Krygsheld
March 24, 2025
Doesn't always send push notifications, so I have to open the app. Other than that, great! Works well for authentication, and they recently added the ability to automatically transfer accounts to a new phone, which happened immediately and seamlessly for me :)
41 people found this review helpful
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A Google user
June 5, 2019
Further problem with current version - notification sound is on even if notification settings is "no sound". This is a significant inconvenience. Update: Seems the bug is somewhere between Duo and Android 8. After I have totally disabled notifications (switched to low priority), used it for some time and switched back to medium priority (no sound notifications) it works - that is gives notifications but does not make the sound.
5 people found this review helpful
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Duo Security LLC
June 4, 2019
Hi Fedor, sorry to hear you're having issues. Can you please provide more information about the sound problem you are encountering? Did you change the Duo Mobile app's notification settings in your Settings app to show notifications silently? If not, what are you current notification settings?

What’s new

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.