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2FA Authenticator (2FAS) vs Duo mobile

A side-by-side look at 2FA Authenticator (2FAS) and Duo mobile. For an in-depth review of either product, follow the links below.

2FA Authenticator (2FAS)

2FA Authenticator (2FAS)

Security & Privacy

2FA Authenticator (2FAS) is a free, open-source two-factor authentication app for mobile devices. It enables users to easily set up two-factor authentication for added account security, with support for OTP, TOTP, and HOTP standards.

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Duo mobile

Duo mobile

Security & Privacy

Duo Mobile is a user-friendly two-factor authentication app that provides an extra layer of security when logging into accounts. It works by generating one-time codes on the user's smartphone that they enter along with their password when accessing important services.

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