# Shuffle Sleep vs Kotonemu

The clearest difference is in-app purchases: Shuffle Sleep at none against Kotonemu's 2. Shuffle Sleep also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Kotonemu's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. Kotonemu sells 2 one-off in-app purchases. Shuffle Sleep asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shuffle Sleep | Kotonemu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/shuffle-sleep-brain-shutdown/id1500187007/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | — |
| Size | 4 MB | 38 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sollapps](https://appshunter.io/developer/1449408622) | [GYOU GI](https://appshunter.io/developer/6776104453) |

## What reviewers say

### Shuffle Sleep

[App page](https://appshunter.io/ios/app/shuffle-sleep-brain-shutdown/id1500187007)

This app uses a cognitive method to help you fall asleep faster by presenting a sequence of unrelated images. It features human narrations, customizable rhythms, and a sleep timer to aid your transition into rest.

**Highlights:** Cognitive shuffle method, Human narrations, Bi-lingual support (English/Japanese), Customizable rhythms, Sleep timer, Word management

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

**In-app purchases:** none


### Kotonemu

[App page](https://appshunter.io/ios/app/kotonemu/id6800693416)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| At Your Ear | $12.99 | one-time |
| All Night | $12.99 | one-time |


## Frequently asked questions

### Is Shuffle Sleep free?

Shuffle Sleep is free to download, with no in-app purchases.

### Is Kotonemu free?

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

### Do Shuffle Sleep or Kotonemu have ads?

Shuffle Sleep shows ads; Kotonemu does not.

### Which is updated more often, Shuffle Sleep or Kotonemu?

Shuffle Sleep ships an update every 5 weeks, and Kotonemu every 5 weeks. Most recently, Shuffle Sleep was updated on November 3, 2026 and Kotonemu 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.*