To set up the Authenticator app for the first time, use its option under the Set Up Alternative Second Step heading. Open the app, click the + button to add your account, and scan the QR barcode.

Here’s how you can get started with Google Authenticator, what’s recently changed about the app, and how to access your codes in-app. How Do I Set It Up? To start off, download the app to your ...

Once enabled, you set it up to send a six digit code for authentication purposes to your cell phone. Select your main phone’s number and not a Google Voice number that is tied to your account.