# CatharSushi vs AIChat無制限

The clearest difference is in-app purchases: CatharSushi at none against AIChat無制限's 2. CatharSushi also leads on update cadence (every 6 days vs every 4 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. AIChat無制限 sells 2 one-off in-app purchases. CatharSushi asks for nothing beyond the download.

CatharSushi ships an update every 6 days, AIChat無制限 every 4 months. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CatharSushi | AIChat無制限 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 4 months |
| Size | 38 MB | 27 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mutsumi Kubo](https://appshunter.io/developer/1738725654) | [YUKI WATANABE](https://appshunter.io/developer/1724288537) |

## What reviewers say

### CatharSushi

[App page](https://appshunter.io/ios/app/catharsushi/id6499454958)

**Features:** macOS Compatibility

**In-app purchases:** none


### AIChat無制限

[App page](https://appshunter.io/ios/app/aichat/id6740727840)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| トークン追加 | $0.49 | one-time |
| 広告非表示 | $1.99 | one-time |


## Frequently asked questions

### Is CatharSushi free?

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

### Is AIChat無制限 free?

AIChat無制限 is free to download, with in-app purchases available.

### Do CatharSushi or AIChat無制限 have ads?

Both CatharSushi and AIChat無制限 show ads.

### Which is updated more often, CatharSushi or AIChat無制限?

CatharSushi ships an update every 6 days, and AIChat無制限 every 4 months. Most recently, CatharSushi was updated on October 19, 2026 and AIChat無制限 on October 13, 2026.

---

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