Face ID is a great addition to the iPhone and the iPad, and it always looks magical whenever it works. But, just like Touch ID before, you may need to prevent applications from using it. Here's how to do that.
If you have allowed a third-party application to use facial identity as an authentication mechanism, it can be very useful to connect more easily and quickly from your banking application to your shopping list. However, you may want to revoke this permission at times. Whatever the reason for your decision, preventing an application from using Face ID only requires a few taps.
Revocation of access via face and code identification settings
To start, open the Settings app, and then tap "Face ID and PIN".
After entering your authentication code to access, tap "Other Apps".
Here you will see a list of all applications that have requested access to a face ID, as well as its current status. The toggle to the right of the application name indicates whether the application currently has access to a face ID or not. Switch any application for which you want to revoke access.
Revoke access via the settings of an application
Another method to achieve the same result is to open the Settings application again, scroll down until you find the name of the application for which you want to revoke the ID of face, then press it.
You will find all the permissions of this application here. To remove access to the facial identity, toggle the switch to the "off" position.