# Brown Noise vs Noise Machine°

The clearest difference is review sentiment: Noise Machine° at 100% against Brown Noise's 65%. Noise Machine° also leads on in-app purchases (none vs 3) and ads (none vs shown). Brown Noise's advantage is ratings volume (764 vs 3). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Brown Noise sells 3 in-app purchases, starting at $39.99 per year. Noise Machine° asks for nothing beyond the download.

Noise Machine° holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Brown Noise has 764 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 65% of Brown Noise's written reviews are positive against 100% of Noise Machine°'s.

Brown Noise ships an update every 3 weeks, Noise Machine° every 11 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Brown Noise | Noise Machine° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (764 ratings)](https://appshunter.io/ios/app/brown-noise-sleep-machine/id6499593468/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/noise-machine/id6757855464/reviews)** |
| Number of ratings | **764** | 3 |
| Positive reviews | 64.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 146 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YELLOWCAT LABS LTD](https://appshunter.io/developer/6776779596) | [KARLIE ALEXIS KOWALSKA](https://appshunter.io/developer/6806982191) |

## What reviewers say

### Brown Noise

[App page](https://appshunter.io/ios/app/brown-noise-sleep-machine/id6499593468)

Enhance your sleep quality with a variety of colored noises, ambient soundscapes, and guided meditations. This app offers a user-friendly interface and adjustable timer to create a tranquil environment for restful sleep for all ages.

**Highlights:** Colored noises (brown, etc.), Binaural beats and brainwaves, Ambient soundscapes (nature, cabin), Guided meditations, Adjustable sleep timer, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly subscription | $39.99 | per year |
| Yearly subscription | $59.99 | per year |
| Yearly subscription | $59.99 | per year |


### Noise Machine°

[App page](https://appshunter.io/ios/app/noise-machine/id6757855464)

This app generates unique, continuous audio to help you sleep better, focus more, and relax. It offers various sound types like brown, green, white, pink, and fan noise, all procedurally generated to avoid repetitive loops. Enjoy offline playback and a sleep timer for a seamless experience.

**Highlights:** Procedurally generated infinite audio, Multiple noise types (brown, green, white, pink, fan), Sleep timer with fade out, Offline mode, Background playback, Customizable sound controls

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Brown Noise free?

Brown Noise is free to download, with in-app purchases available.

### Is Noise Machine° free?

Noise Machine° is free to download, with no in-app purchases.

### Which has better reviews, Brown Noise or Noise Machine°?

Noise Machine° is rated higher. Brown Noise averages 4.6 out of 5 from 764 ratings, while Noise Machine° averages 5.0 from 3 ratings.

### Do Brown Noise or Noise Machine° have ads?

Brown Noise shows ads; Noise Machine° does not.

### Which is updated more often, Brown Noise or Noise Machine°?

Brown Noise ships an update every 3 weeks, and Noise Machine° every 11 days. Most recently, Brown Noise was updated on November 5, 2026 and Noise Machine° on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*