4.4
85.7K 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
Feb 9, 2026

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

4.4
84.1K reviews
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 :)
135 people found this review helpful
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Jason Galley
January 15, 2026
Overall it works decently well. A few annoyances, but mainly that if you click the accept button in the notification panel and it doesn't detect a Wi-Fi/cellular signal (even though it's always there) it pops up the app with a failure notification, but accepting the failure notification CLOSES THE APP. When trying to accept a login attempt against a timer this is majorly annoying and serves absolutely no purpose to have it close after that... it does this frequently.
20 people found this review helpful
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Snow Beanie
January 13, 2026
Just like the other reviews said, it pops up every time I want to log in, it's SO ANNOYING! Why can't we have trusted devices? Then I got a new phone and I can't connect my account, it keeps saying account not found. This app is such a pain and brings me so much grief I HATE it, I would rate it negative stars if I could. It's so useless. Please add biometrics or a password option. Like every other app and website ever.
16 people found this review helpful
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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.