Set to Remember Touch ID for some iPhones
Requirement: iPhone 5S, 6, 6 Plus, 6S, and 6S Plus only.
If you want to use the fingerprint feature of your iPhone to unlock the drive you can enable the Remember Touch ID setting.
1. Make sure the drive is unlocked and authorized (logged-in) via the app.
2. Tap the drive entry to access Settings.
From now on you will prompted to use Touch ID instead of your password to unlock your drive.