Use Google Authenticator without a Google Account
You can save your codes safely in your Google Account with Google Authenticator. This helps protect you from being locked out of your account when you change devices. However, you may instead choose to use Google Authenticator without these protections.
To use Google Authenticator without a Google Account:
- When you first open the app, tap Use without an account.
- If you already saved codes to your Google Account, at the top right corner of the home screen, tap your profile picture, then tap Use Authenticator without an account.
- This action will remove codes from all of your Google Accounts and store them on your device. Codes will not be available on your other devices.
Source: https://support.google.com/accounts/answer/1066447?hl=en&co=GENIE.Platform=Android
You can also use 2FA authenticators that are entirely separate like Authy.
