Proof

@react-native-firebase/app-check

native-seam only. the published app-check JS runs over NativeRNFBTurboAppCheck, which mirrors RNFBAppCheckModule and a port of AppCheckCore token caching. the debug provider exchanges its token at firebaseappcheck.googleapis.com, so a debug token registered in the Firebase console yields real tokens, and the firebase js sdk services behind the other RNFB seams attach them. DeviceCheck and App Attest report the unsupported-attestation-provider error a device without DCDevice support reports
80%
API coverage
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.
Working (9)
initializeAppCheck and activateconfigureProvider for debugdeviceCheckappAttest and appAttestWithDeviceCheckFallbackgetToken with caching and forced refreshgetLimitedUseTokentoken auto-refresh settingprovider-not-ready and token-error rejectionsdebug token logging and persistence
Missing
Apple-signed DeviceCheck and App Attest attestation