4.7
84.1K reviews
10M+
Downloads
Content rating
Everyone
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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
Jul 14, 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

4.7
82.6K reviews
Addison Mangum
1 May 2025
Used to work but broken now. This app used to work like 5 years ago or so. It was very annoying because it popped up for literally everything connect to my accounts, so I felt like I had to log into every single page I visited. But it did work. Just now I tried to use it to add a new account, and the previous two are there and deactivated, but the app is frozen. I can install and uninstall it, and it will load the home page, but none of the buttons work, and I'm unable to use the app entirely.
76 people found this review helpful
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James Um
16 July 2025
One star because of the pop-up error other reviewers have mentioned: "leads to a pop-up warning that one cannot respond without a WiFi or cellular Internet connection. That's ridiculous; I couldn't have received the push without an Internet connection." It is ridiculous. The error compounds when you try to click-in to react to the pop-up and the app kicks you out ot the homescreen.
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Amy Carlson
13 July 2025
This is the most ridiculous program ever. i had to reset my phone and it took away the information on this app. So when I tried to reinstall the app and sign on again, it kept sending me to the phone that I just reset. And I have absolutely no way of getting the code, because I can't get past the two factor authentication. i am in tears and incredibly upset, and I have no one to get help from because there's absolutely no customer service anywhere to be had on the app. i expected more from cisco
3 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.