# クレイジーチャット vs UruSainen

The clearest difference is device support: クレイジーチャット at 3 against UruSainen's 1. クレイジーチャット also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | クレイジーチャット | UruSainen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (47 ratings)](https://appshunter.io/ios/app/id1583540988/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Size | 176 MB | 23 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HENN Inc.](https://appshunter.io/developer/734265844) | [Yasuhiro Hamada](https://appshunter.io/developer/1825750232) |

## What reviewers say

### クレイジーチャット

[App page](https://appshunter.io/ios/app/id1583540988)

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

**In-app purchases:** none


### UruSainen

[App page](https://appshunter.io/ios/app/urusainen/id6756487439)

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

**In-app purchases:** none


## Frequently asked questions

### Is クレイジーチャット free?

クレイジーチャット is free to download, with no in-app purchases.

### Is UruSainen free?

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

### Do クレイジーチャット or UruSainen have ads?

Both クレイジーチャット and UruSainen show ads.

### Which is updated more often, クレイジーチャット or UruSainen?

クレイジーチャット ships an update every 2 months, and UruSainen every 2 months. Most recently, クレイジーチャット was updated on October 25, 2026 and UruSainen on October 22, 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.*