Native iOS app · Free to try
Fall asleep faster.
Focus deeper.
Quiet the noise.
Brown Noise wraps you in deep brown noise and the sounds of nature — engineered for sleep, focus and calm, with a smart timer and lock-screen control.
38%
faster to fall asleep with brown noise*
15+
sounds, from noise to nature
4.8★
average App Store rating
100%
offline — plays anywhere
Listen before you download
Play it right now, in your browser
Tap any tile to hear it loop. When you're ready, the app unlocks the full library, a sleep timer, offline playback and all-night background sound.
Web previews are short loops. Browse the full sound library →
Everything you need to switch off
Designed for real rest, not just noise
Gapless, seamless loops
Every sound loops with no click or gap — engineered from lossless audio so it never breaks the calm, even after hours.
Smart sleep timer & fade-out
Set it to fade out gently as you drift off, so the sound never stops abruptly and wakes you back up.
Lock-screen & background play
Control playback from the lock screen and Control Center. Keeps playing when you close the app or lock your phone.
Brown, white, pink & green noise
The full spectrum of noise colors in three intensities each — from a light hush to a deep, enveloping rumble.
Nature, rain & binaural beats
Rain, thunder, waterfalls, campfire, ocean and headphone-tuned binaural beats for focus and deep sleep.
Guided meditations
Short guided sessions layered over your favourite soundscape — for winding down, waking up or resetting mid-day.
Why an app, not a website or a video
A YouTube tab can't do this
There are plenty of 10-hour noise videos online. Here's why a purpose-built iOS app is a genuinely better night's sleep.
Plays with the screen off
A browser tab stops the moment your phone locks. A native app keeps playing all night in the background.
No ads, no autoplay, no buffering
Unlike streaming a video, the audio lives on your device — instant, private, and never interrupted by an ad or a "still watching?" prompt.
Works fully offline
On a plane, in the mountains or on airplane mode — every sound is downloaded and ready without a connection.
Real lock-screen controls
Play, pause and set your timer right from the lock screen and Control Center — like any music app.
Gentle on your battery
Native audio sips power. Streaming video or keeping a browser awake all night drains your phone.
A timer that actually sleeps your phone
Set it and forget it — the sound fades out and stops on its own, so nothing plays till morning.
60-second quiz
Not sure which sound is for you?
Answer four quick questions and we'll match you to the perfect sound for sleep, focus, relaxation or tinnitus — then let you play it instantly.
Find your sound →The science of sound & sleep
Backed by research, tuned by ear
Steady, broadband sound masks the sudden noises that fragment sleep and pull your focus. It's a simple idea with real evidence behind it.
- ◆
In one 2017 study, people fell asleep about 38% faster with broadband noise, especially in noisy environments.
- ◆
Consistent 7–9 hours of sleep is linked to a lower risk of cardiovascular disease.
- ◆
Sound masking is a widely recommended self-help tool for tinnitus, softening the ringing so it fades into the background.
*Informational only — not medical advice. See the blog for sources.
Deeper, less fragmented sleep — night after night.
Your calmest night's sleep is one tap away
Free to download and try. No account needed to start listening.