The current version of Duo Mobile supports iOS 14.0 and greater, but we cannot guarantee Duo Mobile's functionality on preview/beta software provided by Apple. Duo recommends upgrading to the most recent version of iOS available for your device. The Duo Mobile app is compatible with the M1 iPad Pro.
iOS 13 and older
Users running versions 13 and older will not be able to download the latest version of Duo Mobile from the App Store. This removal from the App Store does not affect mobile app authentications for users who have already downloaded the app.
Additionally, we no longer provide troubleshooting support, bug fixes, maintenance fixes, or security updates for mobile devices running version 13 and older.
This end-of-support milestone is not an end-of-life for our application on devices with this operating system (or older operating systems that are no longer supported); push and app-generated passcode authentications will continue to function on installed apps. While authentications will continue to function, we always recommend users run the latest version of Duo Mobile on a supported operating system to maintain a strong security posture and get access to the latest features and improvements.
As SMS-delivered passcodes and phone callback authentication do not rely on the Duo Mobile app, Duo will continue to support these types of authentication for older devices with or without the app.