Duo Mobile
Duo Security LLC
Download price only. In-app purchases and subscriptions may cost extra.
- Developer
- Duo Security LLC
- Version
- 4.121.0
- Minimum iOS
- 17.0
- Age rating
- 4+
- App Store rating
- 4.87 / 5 (2,284,919)
- App languages
- CA, CS, DA, NL, EN, FI, FR, DE, HI, ID, IT, JA, KO, NB, PL, PT, ZH, ES, SV, TH, ZH, TR, VI
App Store region: United States · Checked: Sep 21, 2026
Sources & method ↗
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 on your iPhone, iPad, or Apple Watch. Additionally, you can use Duo Mobile to manage two-factor authentication for other application and web services that make use of passcodes. 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. License agreements for third-party Open Source libraries used in Duo Mobile can be found at https://www.duosecurity.com/legal/open-source-licenses.
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.