Duo Mobile v4.103.0

Cisco Systems, Inc.

About this app

Developer Description

Security made simple

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.

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.

Version Information

Version: 4.103.0
Downloads: 10M+
Updated on: Jan 12, 2026
Released: May 3, 2011
Requires: Android 11

Statistics

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Duo Mobile - Google Play Rankings

Rank	Country	Category	List	Change
				—

No ranking data available yet. Rankings are updated daily.

#15 in Top Free Business in United States

#14

Job Search by ZipRecruiter

#15

Duo Mobile

#16

UPS

#21 in Top Free Business in Canada

#20

Slack

#21

Duo Mobile

#22

Payworks Self Service

#28 in Top Free Business in Netherlands

#27

Google Chat

#28

Duo Mobile

#29

Easyfairs NL

#30 in Top Free Business in Australia

#29

Accio - Alibaba AI Agent

#30

Duo Mobile

#31

Workday

Duo Mobile users say on Google Play

★★★★★

Stephen Finchum

The Duo Mobile is a great tutor for learning other languages. Plus, there are other advantages to have the app on your phone and computer.

★★★★

John Garner

worked great, enjoyed push notifications, but when I imported backed up ones for a migration, it loaded them but the app won't respond at all at start (though shows account names list). Completely frozen. Emailed only contact I could find, will wait and see. Trying to uninstall and re install to see if that fixes it. UPDATE 2: eventually (after weeks), started working for a while. Tried many restarts/reboots. It worked in split screen only a while. Now frozen again (no response to taps/scroll).

★★★

Provoxin

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.

★★

S.A. Lopez

Usable. Not a fan of how organizations are locking users into the app's proprietary 2FA instead of using open technology like HOTP or TOTP, removing choice from users. Proprietary 2FA also relies on their servers being online, which TOTP doesn't, and it cannot be freely audited. Please support open, transparent authentication and use a different authenticator if you have the choice.

★