Mobile authenticator apps provide a more secure way to log in to websites and online accounts using multi-factor authentication. Stay safe with the top MFA apps we've tested.

For most people, authenticator apps offer the best mix of convenience and security. But which one is best for you?

The Microsoft Authenticator does offer a number of extra features that make this app worthy of your consideration: Cloud backups for example, so you can sign in on a new device to get your codes ...

Best By Benedict Collins Contributions from Bryan M Wolfe last updated July 31, 2025 Add an extra layer of online security with the best authenticator app ...

Two-factor authentication is critical to securing your online accounts, and Duo Mobile offers the best combination of security, accessibility, and ease of use.

Some accounts ask you to install a very specific authenticator app, but for others (including Google) you can take your pick: The Android and iOS app stores have a number of options to pick from ...

All things considered, 2Stable’s Authenticator app is best suited for users who view security and convenience as equally important, and don’t mind paying a premium for both.

2FA authenticator apps add an extra layer of security to your accounts. Explore the best options for seamless protection and peace of mind.

Authenticator apps auto-generate numerical codes to help secure your online accounts. These codes act as a form of 2-factor authentication (2FA). Here are some of the best authentication apps ...