# Noise: Green, Brown, White — Better sleep, relax, focus

> Real-time generator for various colors and types of noise for sleep, focus, and relaxation. (iPhone/iPad app by Janusz Jankowski.)

- Source: https://appshunter.io/ios/app/noise-green-brown-white/id6474789616 (this page in markdown: same URL + `.md`)
- Developer: [Janusz Jankowski](https://appshunter.io/developer/789966888)
- Category: Health & Fitness, Music
- Price: Free with in-app purchases
- Rating: 4.80/5 from 232 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 4 MB
- Languages: Korean, Dutch, German (Germany), Russian, Vietnamese, European Spanish, Arabic, American English, Italian, Indonesian and 9 more
- Released: 2024-05-11
- Data updated: 2026-09-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/noise-green-brown-white/id6474789616/reviews.md

## What is Noise?

True & Real-Time Noise Generator - No files with pre-generated noise.
The app can generate various colors and types of noise.
Different people have different needs when it comes to noise. For instance, one person may find that brown noise helps with sleep disorders, while another might prefer white noise.
Experiment with different types of noise to discover which one best assists you with sleep, work, and more.

Features:
• True audio noise generated in real time.
• Multiple noise colors: purple (violet), blue, white, pink, brown.
• Ability to mix noise sounds.
• Selection between natural or uniform noise sources.
• Simple user interface.
• Volume controlled by physical buttons or within the app.
• Convenient notification controls.
• Low battery usage.
• Shutdown timer for sleep.
• Ideal for relaxation, sleep, and study.

How to use:
Tap the large "Play" button to start playing the noise. You can remain in the app or press the home button to let the sound continue in the background.
To change the noise color, tap the color-changing button located at the bottom of the screen. For more refined control, tap the 'sliders' button for advanced settings.
Set a timer for when you want the noise to stop by tapping the timer button.
In the "Natural RNG" section of the advanced menu, you can select whether the noise generator uses a uniform or natural source.

About the colors / types:
Brown Noise: (-6dB/octave) Emulates the deep and resonant sounds of powerful waterfalls or distant thunder.
Pink Noise: (-3dB/octave) Mimics the gentle rustling of leaves, the steady patter of rain, or the blowing of wind.
White Noise: Features a uniform distribution of sound, akin to the steady hum of a fan or the static of a radio.
Blue Noise: (+3dB/octave) Echoes the high-pitched hiss of flowing water.
Purple Noise: (+6dB/octave) Essentially a higher-pitched version of blue noise, offering a sharper tone.

Green Noise: Focused on mid-frequencies, resembling the sound of rustling leaves in a dense forest.
Grey Noise: Has a balanced spectrum that compensates for human hearing perception.

Disclaimer: This is not medical advice.

Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Real-time noise generation
- Multiple noise colors (purple, blue, white, pink, brown, green, grey)
- Ability to mix noise sounds
- Natural or uniform noise sources
- Simple user interface
- Shutdown timer
- Notification controls

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Permium 1 Year | $29.99 | per year |
| Premium 1 Month | $5.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $79.99 | one-time |


## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/noise-green-brown-white/id6474789616/reviews.md

### 5/5 — Henry

*2026-06-24*

I love how u can customize to a the exact noise you want

### 5/5 — Very good app

*2026-04-01*

Simple to use, not much to it other than great clean color sounds. It helps me fall asleep most nights.

### 1/5 — As potential

*2025-09-21*

For almost $80 lifetime not worth it. Not enough options, very basic but not worth the money

### 5/5 — Great app

*2025-04-25*

Simple to use, not much to it other than great clean color sounds.

### 5/5 — Great design

*2025-02-28*

Oww what a design. Love the design. Simple and attractive.

### 1/5 — No instructions

*2025-01-24*

The screen opens and that’s it. You can choose from different color sounds but it doesn’t explain which individual sound is best for which environment. No guidance whatsoever. And you expect people to pay for this app?

**Developer response:** Thank you for taking the time to share your feedback. I’m sorry the lack of guidance impacted your experience with the app. My goal was to keep the app simple and easy to use, but I can see how some recommendations could add value. I had considered adding a guide but was concerned it might overcomplicate the design. Additionally, choosing the best noise for a specific goal can be subjective.

Based on your input, I’m planning to include guidance or suggestions in a future update, and I hope it will better meet your expectations.

Regarding payments, the base functionality is free, and payment is only for premium features like removing ads.

I’d truly appreciate it if you could reconsider your rating after trying the updated version once it’s live. Your feedback is incredibly valuable, and it’s helping me make the app better for everyone. Thank you again!

### 5/5 — Great design

*2024-08-30*

Oww what a design. Love the design. Simple and attractive.

### 5/5 — Super

*2024-08-30*

Super clean interface. Very easy to use. 5 Stars.

### 5/5 — fun app

*2024-08-30*

i really like how this app as the option to be able to play the sound over other things!! also its cool how you can blend the ones you like together

### 5/5 — Wonderful App

*2024-08-29*

Love this app

## Frequently asked questions about Noise

### What does this app do?

This app generates various colors and types of noise in real-time, without using pre-recorded files. It aims to help users with sleep disorders, improve focus during work or study, and promote relaxation by offering a range of customizable sound environments.

### What are the key features of this noise generator?

Key features include real-time audio noise generation, a variety of noise colors like brown, pink, white, blue, and purple, the ability to mix different sounds, options for natural or uniform noise sources, a simple user interface, volume control, notification controls, low battery usage, and a shutdown timer.

### Is this app free to use?

The app is free to download and use, but it does offer in-app purchases. This means you can access basic functionalities for free, with options to unlock additional features or content through purchases.

### What types of noise does the app offer?

The app offers several types of noise, including Brown Noise (deep and resonant), Pink Noise (gentle rustling), White Noise (uniform distribution), Blue Noise (high-pitched hiss), Purple Noise (sharper tone), Green Noise (mid-frequencies), and Grey Noise (balanced spectrum).

### How can this app help with sleep or focus?

By generating consistent and customizable ambient sounds, the app can mask distracting noises and create a more conducive environment for sleep or concentration. Users can experiment with different noise colors and mixes to find the optimal sound profile for their individual needs.

## Version history (last 5 releases)

### 1.3.1 — 2025-02-18

Green and gray noise.
Fade in & out.
Guide.

### 1.2.6 — 2025-01-23

Green and gray noise.
Fade in & out.

### 1.2.5 — 2024-11-26

Green and gray noise.
Fade in & out.

### 1.2.4 — 2024-11-20

Green and gray noise.
Fade in & out.

### 1.2.3 — 2024-10-27

Green and gray noise.
Fade in & out.

## Apps similar to Noise

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [White Noise Deep Sleep Sounds](https://appshunter.io/ios/app/white-noise-deep-sleep-sounds/id1083248251) | 4.8 (206,800) | Free | Health & Fitness |
| [Bedtime Fan: White Noise Baby](https://appshunter.io/ios/app/bedtime-fan-white-noise-baby/id907295335) | 4.8 (200,108) | Free | Health & Fitness |
| [ColorSleep: Green, Brown Noise](https://appshunter.io/ios/app/colorsleep-green-brown-noise/id1658257567) | 4.8 (17,424) | Free | Health & Fitness |
| [Sleep Sounds White Noise, Rain](https://appshunter.io/ios/app/sleep-sounds-white-noise-rain/id1453508270) | 4.8 (34,025) | Free | Health & Fitness |
| [White Noise Lite](https://appshunter.io/ios/app/white-noise-lite/id292987597) | 4.8 (273,868) | Free | Health & Fitness |
| [Sounds to Sleep Well: Sleepi](https://appshunter.io/ios/app/sounds-to-sleep-well-sleepi/id1507018513) | 4.7 (379) | Free | Health & Fitness |

## More apps by Janusz Jankowski

- [Wildagotchi: Virtual Pet](https://appshunter.io/ios/app/wildagotchi-virtual-pet/id928002009)
- [Dogotchi: Virtual Pet](https://appshunter.io/ios/app/dogotchi-virtual-pet/id1242153330)
- [Snake Classic Retro Arcade](https://appshunter.io/ios/app/snake-classic-retro-arcade/id1504754493)
- [Catgotchi: Virtual Pet, Cat](https://appshunter.io/ios/app/catgotchi-virtual-pet-cat/id1522044146)

All apps by Janusz Jankowski: https://appshunter.io/developer/789966888

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*