# Aiyu vs KAMUI Mobile

The clearest difference is in-app purchases: KAMUI Mobile at none against Aiyu's 4. KAMUI Mobile also leads on update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Aiyu sells 4 in-app purchases, starting at $3.99 per month. KAMUI Mobile asks for nothing beyond the download.

Aiyu ships an update fortnightly, KAMUI Mobile every 2 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Aiyu | KAMUI Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 45 MB | 33 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aiyu LLC](https://appshunter.io/developer/1826066356) | [KandaQuantum](https://appshunter.io/developer/1856778074) |

## What reviewers say

### Aiyu

[App page](https://appshunter.io/ios/app/aiyu/id6748525698)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 大学生プラン | $3.99 | per month |
| アイユーブースタープラン | $5.99 | per month |
| スタンダードプラン | $9.99 | per month |
| ブースタープラン | $5.99 | one-time |


### KAMUI Mobile

[App page](https://appshunter.io/ios/app/kamui-mobile/id6755861199)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Aiyu free?

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

### Is KAMUI Mobile free?

KAMUI Mobile is free to download, with no in-app purchases.

### Do Aiyu or KAMUI Mobile have ads?

Neither Aiyu nor KAMUI Mobile shows ads.

### Which is updated more often, Aiyu or KAMUI Mobile?

Aiyu ships an update fortnightly, and KAMUI Mobile every 2 days. Most recently, Aiyu was updated on October 30, 2026 and KAMUI Mobile on October 25, 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.*