Apple released most interesting feature Facial recognition with iPhone X. Face ID is a new revolution in recognition. It is a powerful and secure authentication system that’s more convenient, faster and easy than Touch ID. Face ID is biometric authentication. Biometrics technology is mainly used for identification and access control. Touch ID recognition is also biometric authentication. Face ID uses LocalAuthentication Framework for authentication and Touch ID uses the same framework for authentication. This framework provides facilities for requesting authentication from users. It provides the interface for evaluating authentication policies and access controls and managing credentials with LAContext. LAContext