Brown Noise Player

Press play. That's the whole app.

Brown Noise Player generates smooth, deep brown noise in real time. There are no audio files inside it, which means nothing ever loops, nothing repeats, and the sound keeps going for as long as you need it.

FIVE VARIANTS
Classic - balanced, steady brown noise
Deep - darker and heavier, like distant thunder
Warm - softer top end, gentle and close
Ocean - slow rolling swells, like surf
Rainfall - brighter and airier, a steady downpour

All five are level-matched, so switching between them never jumps in loudness.

BUILT TO GET OUT OF THE WAY
One big button. Play, pause, done.
Keeps playing when your screen is locked or you switch apps.
Control it from the lock screen and Control Center.
Pauses when you unplug your headphones instead of blasting the speaker.
Steps aside for phone calls, then picks back up.
Remembers your last sound and volume.

NO ACCOUNTS, NO ADS, NO TRACKING
No sign-up. No subscription. No analytics. The app collects nothing at all, because it has no network code in it - it works exactly the same in airplane mode.

One quiet app that does one thing, in under two megabytes.