How do I set up my touch ID on my Apple device?
To set up Touch ID on a compatible Apple device:
Tap Settings > Touch ID & Passcode, then enter your passcode.
Tap "Add a Fingerprint".
Follow the instructions on-screen to set up Touch ID.
Each time you open the app, to ensure only you have secure access to your account place your finger on the finger print to access your account.
If you do not set up your touch ID, you will be asked to enter username and password credentials each time when you open the mobile app.