# 認知シャッフル睡眠 vs Aurnia

The clearest difference is in-app purchases: 認知シャッフル睡眠 at none against Aurnia's 2. 認知シャッフル睡眠 also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Aurnia sells 2 in-app purchases, starting at $6.99 per month. 認知シャッフル睡眠 asks for nothing beyond the download.

認知シャッフル睡眠 ships an update every 2 weeks, Aurnia weekly. The most recent releases landed on October 30, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 認知シャッフル睡眠 | Aurnia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/cognitive-shuffle/id6483436496/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 49 MB | 20 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Masao Sasaki](https://appshunter.io/developer/1651201873) | [JIYULMOM](https://appshunter.io/developer/379186743) |

## What reviewers say

### 認知シャッフル睡眠

[App page](https://appshunter.io/ios/app/cognitive-shuffle/id6483436496)

This app guides you to sleep using a cognitive shuffle method. It reads out random words, allowing you to focus your imagination and drift off to sleep. Customize voice, duration, and playback settings for a personalized experience.

**Highlights:** Randomized word recitation, Customizable voice (male/female), Adjustable playback duration (1-30 mins), Adjustable word recitation interval, Adjustable recitation speed, Adjustable volume control, Notification sounds are OFF

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

**In-app purchases:** none


### Aurnia

[App page](https://appshunter.io/ios/app/aurnia-sleep-tracker/id6764247734)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aurnia Pro Monthly | $6.99 | per month |
| Aurnia Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is 認知シャッフル睡眠 free?

認知シャッフル睡眠 is free to download, with no in-app purchases.

### Is Aurnia free?

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

### Do 認知シャッフル睡眠 or Aurnia have ads?

Neither 認知シャッフル睡眠 nor Aurnia shows ads.

### Which is updated more often, 認知シャッフル睡眠 or Aurnia?

認知シャッフル睡眠 ships an update every 2 weeks, and Aurnia weekly. Most recently, 認知シャッフル睡眠 was updated on October 30, 2026 and Aurnia on November 2, 2026.

---

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