Method 1: Transfer Accounts (Both Phones Available — Easiest)

  1. 1

    Install Google Authenticator on the new phone

    Download Google Authenticator from the App Store (iPhone) or Play Store (Android) on your new device.

  2. 2

    On the old phone: tap the three dots → Transfer accounts → Export accounts

    Open Google Authenticator on your old phone. Tap the three-dot menu (top right). Tap Transfer accounts → Export accounts. Select which accounts to export. Google Authenticator generates a QR code containing your account data.

  3. 3

    On the new phone: scan the QR code

    On the new phone, open Google Authenticator. Tap the + button → Scan a QR code. Point the camera at the QR code displayed on the old phone. All selected accounts transfer instantly. Verify the codes match on both phones before deleting from the old phone.

Method 2: Google Account Sync (Simplest, if Enabled)

In newer versions of Google Authenticator, accounts can be synced to your Google Account. If you had this enabled: install Google Authenticator on the new phone, sign in with the same Google Account, and your accounts restore automatically. Check Settings (gear icon) on the old phone to see if “Sync to Google Account” was enabled.

Method 3: Re-Add Accounts Manually (Old Phone Not Available)

  1. 4

    Use backup codes or recovery options for each service

    If you no longer have the old phone: each service that uses Google Authenticator for 2FA has its own account recovery process. For Google accounts: go to accounts.google.com → Security → 2-Step Verification and follow the recovery process. For other services: use their backup codes (if you saved them) or contact support. This is why saving backup codes when setting up 2FA is critical.

Save backup codes when setting up 2FAEvery service that offers 2FA also provides one-time backup codes. Save these to a secure location (password manager, printed and stored safely) when you set up 2FA. If you ever lose your authenticator app without transferring accounts, backup codes are how you regain access.

Frequently Asked Questions

You need either backup codes (saved when you set up 2FA), a backup phone number registered with the service, access to your recovery email, or the service’s account recovery process. For Google accounts specifically: Google’s account recovery at accounts.google.com can verify your identity through various methods. For other services, contact their support team. This situation is very common — most major services have recovery processes, though they take time to verify identity.
Google Authenticator works well but has limitations — historically no cloud backup (though newer versions added Google Account sync). Authy (free) provides encrypted cloud backup and works across multiple devices simultaneously. 1Password and Bitwarden include authenticator functionality in their password manager apps. For most users, any of these is adequate. The most important thing is using 2FA at all, regardless of which app.