For tired parents everywhere
Your phone hears it before you do. Get alerted the moment crying starts — then find out if they're hungry, tired, or in pain.
Or open directly in your browser — no install needed
Features
Big text, instant answers, no account, no setup. Open it and it just works — even offline at 3am.
Continuously samples audio and runs FFT analysis every frame. No delays, no buffering.
See the audio being captured so you always know the mic is active and listening.
Get alerted the moment crying is detected, even if your screen is off or locked.
Timestamped history of every cry event with type and duration. Last 10 saved.
Adjust detection threshold to match your environment and reduce false positives.
Add to your home screen like a native app. Works fully offline. No app store needed.
Detection
Not just "baby is crying" — it tells you what kind. So you know what to do before you even get to the crib.
How it works
No account. No cloud. No one listening but you. Everything runs on your device.
The app requests permission via getUserMedia. Audio stays on your device — never uploaded.
Every animation frame, the Web Audio API extracts amplitude (RMS), dominant frequency, and rhythm envelope.
Pitch, onset sharpness, and cadence are matched against thresholds. No ML model — no latency.
On detection: push notification fires, audio alert plays, event is saved to localStorage.
Free, private, works offline. Open it in your browser in seconds.
🎙 Start Listening FreeRequires microphone permission · HTTPS · Best on Chrome / Android