The right sound for focus, sleep, and beyond.

Noise is a simple iOS app that plays five types of comfort noise — white, pink, brown, mosquito repellent (17kHz), and pest repellent (20kHz). With a built-in timer and volume control, it's your go-to sound companion for deep work, relaxation, sleep, and keeping insects at bay.

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Download on the App Store

5 Noise Types

Choose from white noise, pink noise, brown noise, a 17kHz mosquito repellent tone, and a 20kHz pest repellent tone. One tap switches between them instantly.

Built-in Timer

Set a timer for 5, 15, 30, or 60 minutes and let the app stop automatically. Great for falling asleep or taking timed breaks without touching your phone again.

Volume Control

Adjust the volume with a simple slider to find your perfect level — from a gentle background hum to full masking of surrounding noise.

Mosquito & Pest Repellent

Play a 17kHz tone said to repel mosquitoes, or a 20kHz tone said to deter mice and other pests. Try it outdoors or before bed. (Note: effects are not scientifically proven.)

5 Types of Comfort Noise

White, pink, and brown noise for focus and sleep — plus high-frequency tones at 17kHz and 20kHz for repelling mosquitoes and pests. Switch between them with a single tap.

NOISE
TIMER

Auto-Stop Timer

Choose from 5, 15, 30, or 60 minutes. The app stops automatically when time's up — no need to reach for your phone. Perfect for sleep, naps, or Pomodoro sessions.

Easy Volume Control

Drag the slider to set your preferred volume in real time. Play it softly in the background or crank it up to mask loud environments — whatever works best for you.

VOLUME
REPEL

High-Frequency Repellent Tones

The app includes a 17kHz tone said to repel mosquitoes and a 20kHz tone said to deter rodents and other pests. Use it when you're outdoors or sleeping in a room you're not sure about. (Note: effects are not scientifically proven.)

Tap.
Play.

3 Simple Steps to Get Started

1
Pick a noise

Tap any noise from the list and it starts playing immediately. Choose white, pink, or brown noise for focus or sleep, or select the mosquito or pest repellent tone for outdoor or nighttime use.

2
Set your volume and timer

Drag the volume slider to your comfort level, then choose a timer if you want the sound to stop automatically. With no timer set, it plays continuously until you stop it manually.

3
Close the app and relax

Once playing, you can close the app and the sound keeps going in the background. Work, read, sleep, or just unwind — Noise runs quietly in the background so you don't have to think about it.

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Download on the App Store

What Users Are Saying

"I play brown noise every day while working from home. It drowns out distractions and helps me stay focused for hours. Simple, clean, no fuss."

— remote_worker_kenji

"I used to struggle to fall asleep. Now I set pink noise on a 30-minute timer and I'm out before it stops. Genuinely changed my sleep routine."

— better_sleep_saki

"Tried the mosquito repellent tone while camping. Can't say for sure if it worked, but it made me feel better about the situation. The app itself is super easy to use."

— outdoor_fan_ryo

Frequently Asked Questions

Find answers to common questions below.

QDoes it play in the background?

AYes. Once you start playing a noise, you can close the app and the audio continues. It also plays while your screen is locked, so it works great as a sleep sound.
QWhat timer lengths are available?

AYou can choose from 5, 15, 30, or 60 minutes. If you don't set a timer, playback continues until you stop it manually.
QDo the mosquito and pest repellent tones actually work?

AHigh-frequency sounds are sometimes said to have a repellent effect, but this has not been scientifically proven. Please use them as an extra measure rather than a guaranteed solution.
QCan I play multiple noises at the same time?

AOnly one noise plays at a time. Tapping a different noise switches to it immediately.
QIs it free?

AYes, all features are completely free to use.

Download Free Now

Download on the App Store
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