Face ID

• Face ID

  • Face ID is Apple's facial biometric system for on-device user verification.
  • It is one form of Biometric authentication.

• Where It Fits

  • Commonly used as a local user-verification step for Passkey, app unlock, and payment authorization.
  • In standards terms, it acts as user verification for a platform authenticator in FIDO2 / WebAuthn flows.

• Related

  • Fingerprint ID
  • Passkey