So I have an application currently on the store that supports Touch-ID login,

• A user with an iPhone X iOS: 12.1.4 sent me a video that he can login using his face ID and as i recall i never implemented the face ID feature yet so i've downloaded the store version on an iPhone X with the same iOS and i couldn't login with Face ID but it did ask me for the mobile pass code which is the right.

Now rolling back to my store version code, there is no info.plist key that indicates using Face-ID which is this one

<key>NSFaceIDUsageDescription</key>
<string>This application wants to access your FaceID scanner</string>

And the code for checking biometrics is this,

let myContext = LAContext()
var authError: NSError? = nil
    if #available(iOS 8.0, OSX 10.12, *) {
        if !myContext.canEvaluatePolicy(LAPolicy(rawValue: Int(kLAPolicyDeviceOwnerAuthenticationWithBiometrics))!, error: &authError) {

            switch authError?.code{

            case (LAError.touchIDNotEnrolled).rawValue?:
                User.sharedUser.touchIDState = .TouchIDNotEnrolled
                self.touchIDButton.isHidden = true
                break

            case LAError.passcodeNotSet.rawValue?:
                User.sharedUser.touchIDState = .TouchIDNotEnrolled
                self.touchIDButton.isHidden = true
                break


            default:
                User.sharedUser.touchIDState = .TouchIDNotSupported
                self.touchIDButton.isHidden = true
                break
            }
        }else{
            User.sharedUser.touchIDState = .TouchIDEnrolled
            // if(User.sharedUser.touchIDState == .TouchIDEnrolled){
            self.touchIDButton.isHidden = false
            // }
        }
    }

My iPhone X is not showing the application that its using Face-ID and simply when in use directs me for the passcode thats the expected result ... however the video is so clear from the user that he is logging in with Face-ID !! how is this even possible ?