Authenticator app vs SMS — which should I choose?

Authenticator app is recommended for additional security, but both options are supported

Authenticator app (recommended)

• Supported mobile apps include: Auth0 Guardian, Authy, Google Authenticator, or Microsoft Authenticator
• More secure than SMS
• Works even without cellular service

SMS verification

• Receive a one-time code via text message
• Easier if you don’t want to install an app
• Slightly less secure than an authenticator app

Both options are supported, but we recommend using an authenticator app when possible.