# Noise Machine° vs 4x4 Treadmill

The clearest difference is in-app purchases: Noise Machine° at none against 4x4 Treadmill's 1. Noise Machine° also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 4x4 Treadmill sells 1 one-off in-app purchase. Noise Machine° asks for nothing beyond the download.

## The numbers

| Metric | Noise Machine° | 4x4 Treadmill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/noise-machine/id6757855464/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 5 MB | 8 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [KARLIE ALEXIS KOWALSKA](https://appshunter.io/developer/6806982191) | [Proglab AS](https://appshunter.io/developer/1144688859) |

## What reviewers say

### 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


### 4x4 Treadmill

[App page](https://appshunter.io/ios/app/4x4-treadmill/id6758803671)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4x4 Treadmill Premium | $4.99 | one-time |


## Frequently asked questions

### Is Noise Machine° free?

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

### Is 4x4 Treadmill free?

4x4 Treadmill is free to download, with in-app purchases available.

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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.*