2FA methods supported by Google Fi
Adding two-factor authentication is one of the most effective ways to protect your Google Fi account. With TOTP support, you can generate Google Fi verification codes directly in the Authenticator App.
SMS
Google Fi can send a one-time verification code to your phone via text message.
Phone call
Google Fi can call your phone and read out a verification code.
Authenticator app (TOTP)
Google Fi lets you use time-based one-time passwords, so you can generate verification codes in an authenticator app on your device — no network or SMS needed.
Proprietary app
Google Fi offers its own companion app for approving sign-ins.
Security key (U2F)
Google Fi works with hardware security keys using the U2F/FIDO standard.
Google Fi 2FA — Frequently asked questions
Does Google Fi support an authenticator app?
Yes. Google Fi supports time-based one-time passwords (TOTP), so you can add it to the Authenticator App and generate verification codes right on your device.
Which two-factor authentication methods does Google Fi support?
Google Fi currently supports: SMS, Phone call, Authenticator app (TOTP), Proprietary app, Security key (U2F).
Is it free to generate Google Fi codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating Google Fi verification codes does not require an account or sign-up.
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