Drown: AI Snore Mask & Noise Shield

What it does

Drown is a proactive audio shield designed for authentic sleep. Instead of playing continuous noise, it stays completely silent by default. Powered by Apple SoundAnalysis and on-device ML, Drown automatically detects disturbances like snoring or sudden traffic, instantly fading in a masking sound to keep you deeply asleep.

The only sleep app that stays silent. until it doesn

Drown doesn't play sound all night. It stays completely silent and only reacts when noise breaks through. A door slam at 3 AM, a neighbor's bass, a truck outside. Drown masks it instantly, then fades back to silence. When you tap the shield and close your eyes, Drown calibrates your room in 5 seconds, measuring the ambient noise floor. From that moment on, every sound is compared to that baseline in real time, 44,100 times per second. If a noise spike exceeds your sensitivity threshold, Drown fades in a masking sound within 200 milliseconds, fast enough that your brain never fully registers the disturbance. When the room goes quiet again, the mask gently fades out over 3 seconds. You stay…from drownapp.com

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