Proof

expo-local-authentication

native-seam: the published LocalAuthentication.js runs from the bundle over the ExpoLocalAuthentication module, following LocalAuthenticationModule.swift as an installed app on the iOS Simulator sees it (Face ID with no enrolled identity, a passcode set): hasHardwareAsync true, isEnrolledAsync false, supportedAuthenticationTypesAsync [FACIAL_RECOGNITION], getEnrolledLevelAsync SECRET, authenticateAsync not_enrolled with disableDeviceFallback. cancelAuthenticate is absent, as on iOS.

95%

API coverage

No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.

Working (5)

hasHardwareAsyncisEnrolledAsyncsupportedAuthenticationTypesAsyncgetEnrolledLevelAsyncauthenticateAsync biometric-only errors; UnavailabilityError for cancelAuthenticate on iOS

Missing (2)

the system passcode sheet for device-fallback authenticationwhich settles as the sheet close button does (user_cancel)