# White Noise vs AOK Sleep

The clearest difference is device support: AOK Sleep at 3 against White Noise's 1. AOK Sleep also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. White Noise sells 2 in-app purchases, starting at $3.99 per month and AOK Sleep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | White Noise | AOK Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/white-noise-deep-sleep-timer/id6759076910/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | — |
| Size | 2 MB | 334 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PROBABILITY LLC](https://appshunter.io/developer/1482354660) | [AOK Labs Limited Liability Company](https://appshunter.io/developer/6787222027) |

## What reviewers say

### White Noise

[App page](https://appshunter.io/ios/app/white-noise-deep-sleep-timer/id6759076910)

This app offers a variety of algorithmically generated ambient sounds to aid sleep, focus, and relaxation. Users can mix two sounds, set a sleep timer with fade-out, and enjoy a dark mode interface. It's ideal for those struggling with insomnia, needing to soothe babies, or seeking a calming background for meditation.

**Highlights:** 12 algorithmically generated sounds, Mix two sounds simultaneously, Sleep timer with gradual fade-out, Dark mode interface, Background audio playback, Focus and relaxation aid

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $3.99 | per month |
| Annual Access | $29.99 | per year |


### AOK Sleep

[App page](https://appshunter.io/ios/app/aok-sleep/id6792801715)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AOK Sleep Pro | $2.99 | one-time |


## Frequently asked questions

### Is White Noise free?

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

### Is AOK Sleep free?

AOK Sleep is free to download, with in-app purchases available.

### Do White Noise or AOK Sleep have ads?

Neither White Noise nor AOK Sleep shows ads.

### Which is updated more often, White Noise or AOK Sleep?

White Noise ships an update every 2 months, and AOK Sleep every 2 months. Most recently, White Noise was updated on October 31, 2026 and AOK Sleep on October 31, 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.*