QuietSea · for iPhone
Noise, made on the phone, for as long as you like
QuietSea has no audio files in it. Every sound is synthesised on your iPhone as it plays, so nothing loops, nothing streams, and it will run for five seconds or eight hours with the same calm.
How it works
- Pick a soundWhite, pink or brown noise — or, with Pro, ocean, rain or binaural.
- Set a timer, or don'tFifteen minutes, an hour, eight hours — or play until you stop it.
- Let it fadeTap Stop with fade and the sound fades out over a length you choose, up to 30 seconds. When the timer ends, it fades out in half a second instead of stopping dead.
What it looks like
White, pink or brown noise?
| Noise | What it is | What it sounds like |
|---|---|---|
| White | Equal energy at every frequency | A bright hiss. Masks voices well. |
| Pink | Equal energy in every octave — falls 3 dB per octave | Softer, like steady rain. Easier for long sessions. |
| Brown | Falls 6 dB per octave | A deep rumble — a waterfall, distant thunder. |
Ocean is pink noise that swells and settles like waves; rain is a pattern of droplets over a soft hush. Binaural plays a slightly different tone in each ear and needs headphones.
Why generated, not recorded
A recording of the sea is a clip, and a clip loops — after a while you start to hear the seam. Generated noise never repeats, and it takes almost no space on the phone. If you use steady noise while you work, Focus Posture adds a pomodoro timer that watches your head tilt through supported AirPods.
Free, with a one-time Pro
Free: white, pink and brown noise, with the timer and the fade-out. Pro: ocean, rain and binaural. QuietSea Pro is a one-time purchase.
Honest about the limits
- A sound, not a treatment. It can mask noise and help you settle; it does not treat sleep problems or tinnitus.
- Binaural needs headphones. Through a speaker, both ears hear both tones.
- It never listens. QuietSea does not use the microphone. No account.
Last reviewed 22 October 2026