Does Google Fi work with authenticator apps like MS Authenticator App?

Yes. Google Fi supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.

Is Google Fi two-factor authentication free?

Yes. Enabling authenticator-app 2FA on Google Fi is free — you only need the free MS Authenticator App.

What if I lose access to my Google Fi 2FA codes?

Use the backup or recovery codes you saved during setup. If you didn't save them, contact Google Fi support to regain access, then re-add the account to MS Authenticator App.

Should I use an authenticator app or a security key on Google Fi?

Google Fi supports both. An authenticator app like MS Authenticator App is free and works on any phone; a hardware security key adds phishing resistance. You can enable both.

How to enable 2FA on Google Fi

← Google Fi overview Supported

Google Fi supports app-based two-factor authentication (2FA). Turning it on adds a second layer of protection, so a stolen password alone can't unlock your Google Fi account.

Step-by-step setup

1
Sign in to Google Fi and open your Google Fi account security settings.
2
Turn on two-factor authentication and choose the authenticator-app option.
Look for "Authenticator app", "Authentication app", or "TOTP" rather than SMS.
3
Scan the QR code with MS Authenticator App.
Open MS Authenticator App, tap add, and point your camera at the QR code Google Fi displays. Can't scan? Enter the setup key manually instead.
4
Enter the 6-digit code to confirm.
Type the code MS Authenticator App generates to verify and link your Google Fi account.
5
Save your backup codes.
Store the recovery codes Google Fi gives you somewhere safe — you'll need them if you lose your phone.

Menu names on Google Fi can change — the official Google Fi 2FA documentation ↗ always has the exact, current path.

Frequently asked questions

Does Google Fi work with authenticator apps like MS Authenticator App?: Yes. Google Fi supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.
Is Google Fi two-factor authentication free?: Yes. Enabling authenticator-app 2FA on Google Fi is free — you only need the free MS Authenticator App.
What if I lose access to my Google Fi 2FA codes?: Use the backup or recovery codes you saved during setup. If you didn't save them, contact Google Fi support to regain access, then re-add the account to MS Authenticator App.
Should I use an authenticator app or a security key on Google Fi?: Google Fi supports both. An authenticator app like MS Authenticator App is free and works on any phone; a hardware security key adds phishing resistance. You can enable both.

Generate your Google Fi codes in MS Authenticator App

Free, offline, and encrypted. One tap for every 6-digit code.

Get the app

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