Proof

react-native-tts

native seam: the TextToSpeech module (TextToSpeech.m) over the shared iOS AVSpeechSynthesizer model; the package JS runs unchanged and speech is voiced by the host page

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)

speakstoppauseresumesetDuckingsetDefaultVoice/Rate/Pitch/Language with their iOS rejectionssetIgnoreSilentSwitchthe iOS 27 simulator voicestts-start/progress/finish/pause/resume/cancel events keyed by utterance hash

Missing (2)

the host voice speaksnot the iOS voice; audio session categories and word-boundary stops have no host effect; the host needs a user activation before it voices anything