Duo Mobile

Name: Duo Mobile
Availability: InStock
Rating: 4.365292072296143 (85944 reviews)
Author: Cisco Systems, Inc.

Cisco Systems, Inc.

4.4

85.9K reviews

10M+

Downloads

Everyone

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

Mar 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, App info and performance, and Device or other IDs

Data is encrypted in transit

Data can’t be deleted

Ratings and reviews

4.4

84.4K reviews

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.

34 people found this review helpful

Provoxin

November 19, 2025

This app has been awful as an IT admin. Enrollments very often don't work for no apparent reason, and refuse to give any meaningful error data. Users softlock themselves if the enrollment process gets interrupted at any point, and then their partial setup has to be completely reset from our end before they can try again. We've been getting countless calls about the setup just failing or refusing to proceed for no reason. Once set up, the app occasionally fails to send push notifications.

703 people found this review helpful

A Google user

November 5, 2019

Very annoying app. The worst part is that the push notifications just don't work. I have to manually open the app to see the request and approve it. Then, a few minutes later, the push for the original request will finally show up in my notifications, by which point it's useless and I don't need it anymore. Also, I emailed the support email for the app store to mention my issue and all they said to me was that the email support was for paying DUO users. Why put that email for the free app?!

102 people found this review helpful

Cisco Systems, Inc.

November 6, 2019

Hi there, what type of account are you protecting with Duo? Please give the suggestions in this article a try (https://help.duo.com/s/article/2050) and let us know if that helps! Email support is provided for all Duo users, including those on the free edition, but you must be a Duo administrator. Learn more here: https://help.duo.com/s/article/1441

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.

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