# 四字熟語チャレンジ vs Spot the Difference Brain Game

The clearest difference is in-app purchases: 四字熟語チャレンジ at none against Spot the Difference Brain Game's 1. 四字熟語チャレンジ also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Spot the Difference Brain Game sells 1 one-off in-app purchase. 四字熟語チャレンジ asks for nothing beyond the download.

## The numbers

| Metric | 四字熟語チャレンジ | Spot the Difference Brain Game |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | — |
| Size | 82 MB | 60 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [珠峰 徐](https://appshunter.io/developer/1246695755) | [RYOSUKE HIRAMATSU](https://appshunter.io/developer/616750780) |

## What reviewers say

### 四字熟語チャレンジ

[App page](https://appshunter.io/ios/app/id6746226382)

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

**In-app purchases:** none


### Spot the Difference Brain Game

[App page](https://appshunter.io/ios/app/spot-the-difference-brain-game/id6794561845)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $3.99 | one-time |


## Frequently asked questions

### Is 四字熟語チャレンジ free?

四字熟語チャレンジ is free to download, with no in-app purchases.

### Is Spot the Difference Brain Game free?

Spot the Difference Brain Game is free to download, with in-app purchases available.

### Do 四字熟語チャレンジ or Spot the Difference Brain Game have ads?

Both 四字熟語チャレンジ and Spot the Difference Brain Game show ads.

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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.*