# Sleep Mask - White Noise — Sleep-aid, distraction-blocker

> White, pink, and brown noise generator for sleep and focus. (iPhone/iPad app by Ultabit, LLC.)

- Source: https://appshunter.io/ios/app/sleep-mask-white-noise/id599235198 (this page in markdown: same URL + `.md`)
- Developer: [Ultabit, LLC](https://appshunter.io/developer/448790450)
- Category: Health & Fitness, Music
- Price: Free with in-app purchases
- Rating: 4.00/5 from 26 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 38 MB
- Languages: American English
- Released: 2013-02-12
- Data updated: 2026-08-20
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sleep-mask-white-noise/id599235198/reviews.md

## What is Sleep Mask?

Sleep Mask is a white noise app that can be used as a sleep-aid or distraction blocker. It produces high quality white, pink, and brown noise sounds as well as some variations of these. 

This is the FREE, ad-supported version of the Sleep Mask app.

What is White Noise? 

White noise is made up of many different frequencies of sound combined together at equal intensity. Its name is analagous to white light which is a combination of all of the different colors of light in the visible spectrum. 

What is Pink Noise? 

Pink noise is a variation of white noise that places emphasis on bass, or the lower frequencies of sound. Its called pink noise, because if you were to do the same with the visible light spectrum you would get a pinkish color. 

What is Brown Noise? 

Brown noise is a variation of white noise that places stronger emphasis on the lower frequencies of sound than Pink noise. In the light analogy this would yield a deep red color. But since the noise coincides with a mathematical model called Brownian motion it is instead called Brown noise after the physicist Robert Brown.

## Key features

- White noise generation
- Pink noise generation
- Brown noise generation
- Sound variations
- Sleep aid
- Distraction blocker

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Ad-Free Sounds Yearly | $9.99 | per year |
| Ad-Free Sounds Monthly | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Version Upgrade | $1.99 | one-time |
| Extras Bundle | $2.99 | one-time |
| Ad-Free Sounds Lifetime | $17.99 | one-time |


## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/sleep-mask-white-noise/id599235198/reviews.md

### 5/5 — Hilft gegen den sogenannten " Brummton"

*2023-05-18, version 14.3.0*

Diese App hat ein "Brown Noise Soft" Rauschen, was Infraschall zumindest maskiert, wenn man basslastige Sportohrhörer benutzt,die fallen im Übrigen auch nachts nicht raus. Ich wäre aus Schlafmangel schon längst gestorben, wenn ich diese App 2011 nicht entdeckt hätte.

### 1/5 — Will not play longer than 15 minutes

*2022-09-28*

Paid 9.99 for this and can only be used for 15 minutes

### 3/5 — Timer

*2022-07-24*

The timer does not work properly. No matter what time limit you put it always will count down from 1 hour. A minor inconvenience, but it is quite annoying.

### 1/5 — Useless

*2022-04-21*

Sound is interrupted every few minutes.

### 5/5 — Review

*2022-02-17*

The mask is a cool thing

### 1/5 — This is the 3rd update since and the app still crashes

*2021-06-17, version 14.3.0*

Please let’s fix it already, it is very nerving; one can’t use this on iOS13.5 anymore. 
Or, alternatively, let’s make an app for soft brown noises and deep brown noises separetly which also works on iOS13.5. I don’t need anything else from you. Please.

### 5/5 — Brown noise

*2018-07-25*

Use brown noise soft to sleep it’ll work for you

### 5/5 — Essential

*2017-04-13*

Sleep Mask has saved me so many times. As someone who is super sensitive to noise while trying to sleep, I set it to "brown noise (soft)", pop some headphones in, and sleep like a baby. Neighbors testing the bass level of their sound system at 11pm? Sleep mask. Dad snoring so loud I can hear it through the walls at my parents house? Sleep mask. Children ruining my pool relaxation time by singing the chorus of a song 100x in a row? Sleep mask. Thank you for helping me cope with other humans.

### 2/5 — Won't play noise with other music playing

*2017-03-23*

In every other way I'm happy with this app... but it won't play anything at the same time as another music app. I want to be able to play music at the same time as white noise so I'm feeling very disappointed :(

### 5/5 — Perfect background sound for sleep

*2017-02-22*

No music, note changes, animal or weather sounds. Just steady, smooth white noise. I use the "brown noise soft" setting and turn it up loud enough to block out smaller sounds that would wake me up.

## Frequently asked questions about Sleep Mask

### What does the Sleep Mask app do?

The Sleep Mask app generates high-quality white, pink, and brown noise sounds. These sounds can be used as a sleep aid to help you fall asleep faster and stay asleep longer, or as a distraction blocker to improve focus.

### What are the different types of noise available?

The app offers white noise, which is a combination of all sound frequencies at equal intensity. It also provides pink noise, which emphasizes lower frequencies, and brown noise, which emphasizes even lower frequencies than pink noise.

### Is this app free to use?

This is the free, ad-supported version of the Sleep Mask app. While you can use the core features for free, there may be options for in-app purchases to enhance your experience or remove ads.

### Who would benefit from using this app?

This app is designed for anyone who has trouble sleeping due to noise or who needs to block out distractions to concentrate. It's particularly useful for students, office workers, or individuals living in noisy environments.

### What is the difference between white, pink, and brown noise?

White noise contains all audible frequencies at equal intensity. Pink noise has more energy in the lower frequencies, sounding deeper. Brown noise has even more energy in the lower frequencies than pink noise, often described as a rumbling sound.

## Version history (last 5 releases)

### 17.0.1 — 2024-01-06

Fixed bug with AirPlay output selection picker on iOS 17.

### 17.0.0 — 2023-10-25

Update for iOS 17.

### 14.3.0 — 2021-06-16

Stability improvements and bug fixes.

Thoughts or feedback? Please leave a review here on the App Store.

### 14.2.0 — 2021-06-04

Stability improvements and bug fixes.

Thoughts or feedback? Please leave a review here on the App Store.

### 14.1.0 — 2021-06-04

Stability improvements and bug fixes.

Thoughts or feedback? Please leave a review here on the App Store.

## Apps similar to Sleep Mask

| 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 |
| [White Noise Lite](https://appshunter.io/ios/app/white-noise-lite/id292987597) | 4.8 (273,868) | Free | Health & Fitness |
| [Brown Noise for Sleep](https://appshunter.io/ios/app/brown-noise-for-sleep/id1660452999) | 4.8 (7,084) | 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 |
| [ColorSleep: Green, Brown Noise](https://appshunter.io/ios/app/colorsleep-green-brown-noise/id1658257567) | 4.8 (17,337) | Free | Health & Fitness |

## More apps by Ultabit, LLC

- [MilePost - Quotes for Runners](https://appshunter.io/ios/app/milepost-quotes-for-runners/id575914913)
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- [Daily Quote - Positive quotes](https://appshunter.io/ios/app/daily-quote-positive-quotes/id586028606)
- [Daily Yoga Quotes  - YogaQuote](https://appshunter.io/ios/app/daily-yoga-quotes-yogaquote/id586029096)
- [Random Fact of the Day - DailyBrain](https://appshunter.io/ios/app/random-fact-of-the-day-dailybrain/id587958633)
- [Ocean Wave Sounds for Sleep](https://appshunter.io/ios/app/ocean-wave-sounds-for-sleep/id590198818)

All apps by Ultabit, LLC: https://appshunter.io/developer/448790450

## Related topics

[dreamlight sleepmask](https://appshunter.io/ios/topics/dreamlight-sleepmask)

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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 2026-08-20.*