2025-04-07 00:00:00 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.