Duo Mobile, developed by Cisco Systems, Inc., is a two-factor authentication (2FA) app designed to help protect online accounts. It supports push-based verification, generates time-based passcodes, and can also manage compatible third-party authentication accounts within a single app. Intended for work, school, and personal use, Duo Mobile offers a convenient way to manage multi-factor authentication across multiple services.

Flexible authentication for secure access

Duo Mobile strengthens account security by requiring a second verification step after a password is entered. Depending on the service, users can approve a login through a push notification or enter a time-based passcode generated by the app. Push approvals require an internet connection, while time-based passcodes remain available offline, making authentication possible even when connectivity is limited.

For Duo-protected accounts, setup begins by activating the app through the organization's or service provider's enrollment process. Camera access is requested only to scan QR codes during activation, although alternative activation methods are also available. Duo Mobile also includes Duo Wear, a companion app for compatible Wear OS smartwatches, allowing users to approve login requests or access passcodes from compatible wearable devices.

Reliable authentication for everyday security

Duo Mobile provides a straightforward approach to multi-factor authentication for organizational and personal accounts. Its combination of push approvals, offline passcodes, and Wear OS support makes it a dependable choice for securing accounts across a variety of devices and services.