Install Google Authenticator

If you set up 2-Step Verification, you can use the Google Authenticator app to receive codes even if you don’t have an Internet connection or mobile service. 


Note: If you have an account through your work, school, or other group, your organization might not allow 2-Step Verification. Check with your administrator to be sure.

To use Google Authenticator on your iPhone, iPod Touch, or iPad, you'll need:

Download the app


Set up the app

  1. Go to the security section of your Google Account.
  2. Under "Signing in to Google," tap 2-Step Verification.
  3. Under "Set up alternative second step," go to the "Authenticator app” section, and tap Set up.
  4. Follow the steps on the screen.
  5. To make sure it works, get a 6-digit code from your Authenticator app.
  6. Enter the code and tap Verify.
  • If your code is correct, you'll see a confirmation.
  • If your code is incorrect, try again.
    Tip: If you’re still having trouble, you might want to verify that the time on your device is correct or read about common issues.

Set up 2-Step Verification for multiple Google Accounts

Google Authenticator can issue codes for multiple accounts from the same mobile device. Each Google Account needs a different secret key. 

To set up additional accounts, turn on 2-Step Verification for each account and use the same Google Authenticator app.

Set up Google Authenticator on multiple devices

This will allow you to generate verification codes from more than one device.

  1. Verify Google Authenticator is installed on the devices you want to use.
  2. In your Google Account, go to the 2-Step Verification section.
  3. If you’ve already set up Google Authenticator for your account, delete that account from Authenticator. Before you delete that account from Authenticator, make sure you have a backup second step.
  4. To set up 2-Step Verification for the Authenticator app, follow the steps on screen. Use the same QR code or secret key on all your devices.
  5. To check if it's working, make sure the verification codes on each device are the same.

Google Authenticator doesn't generate App Passwords. After turning on 2-Step Verification, If you see a prompt for a new App Password, sign in using an App Password.

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