You can enable Face ID for your Aqua application in order to add an extra layer of security to your wallet. If enabled, Aqua will require Face ID to unlock your wallet in the future. You can manage your Face ID settings anytime in the application menu.
On the home screen, tap the Account icon in the bottom right corner.
Activate the toggle next to the Face ID menu item. If the toggle is green, Face ID is enabled. You need to close and reopen your application for the changes to become active.
The next time you open the application, your device will ask if you want to allow Aqua to use Face ID. Tap OK. From now on, Aqua will require Face ID to unlock your wallet.
If you have previously denied Aqua access to Face ID, you can update the application's permissions in your iOS settings. Look for Aqua in your iOS device's application menu. Then activate the Face ID toggle in order to allow Aqua to use Face ID.