We have added and published the product page for the iPhone / iPad app HearRelay.
HearRelay is a sound monitor that lets you hear what a device’s microphone picks up — live, through headphones or on another Apple device (baby monitor / noise check). Pairing is limited to the same Apple Account and the same Wi-Fi, and it never works over the internet. Audio is end-to-end encrypted, never sent to a server, and there is no data collection.
Please note that HearRelay is not a safety, medical, or emergency device, and is not intended to be your only means of supervision.
For features and usage, see the HearRelay product page.