Proof

@expo/app-integrity

native-seam only — the published wrapper runs unchanged; the reference iOS simulator reports isSupported=false, and every App Attest call rejects with the upstream ERR_APP_INTEGRITY_FEATURE_UNSUPPORTED code and message

70%

API coverage

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

Working

all nine public exports: isSupported=false; generateKeyAsync, attestKeyAsync, and generateAssertionAsync reject with the real iOS-simulator unsupported error; Android-only methods take the upstream wrapper platform-error or false branches on iOS

Missing

real App Attest keys, attestations, and assertions; Android Play Integrity tokens and hardware-backed key attestation