Tokens do not transfer

That’s a pretty big thing to overlook for such a massive company. If you have used this app to allow you access to other apps you will need unlink this Google Authenticator from the app BEFORE switching to a new phone to avoid losing access to it FOREVER (happened to me on Snapchat) as the token is stored locally on your phone and not on the cloud.

Completely unacceptable. Use Authy instead

jmtejada about Google Authenticator, v3.0.0