Google Authenticator

2-Step Verification for your Google Account to provide an additional layer of security when signing in. With 2-Step Verification, signing into your account will require both your password and a verification code you can generate with this app. Once configured, you can get verification codes without the need of a network or cellular connection.

Google Admin

take care of the most common tasks from anywhere you are. Add users, reset passwords, manage groups, contact support, and view domain setting changes.