The TD Ameritrade Authenticator app for Android helps protect your information and funds by requiring a biometric authentication before you can access them. It also protects your devices from being compromised by a hacker.

The app can be used on mobile devices that have been registered with the TD Ameritrade Authentication Service.

After registering your device, you will receive a confirmation code. You will also receive a notification when your device is registered and when you have a pending registration.

Once you have received the confirmation code, you can log in to the app using the login information you have entered into the registration form.