# 補数チャレンジ！ vs 習熟！中学受験公民

The clearest difference is in-app purchases: 補数チャレンジ！ at none against 習熟！中学受験公民's 1. 習熟！中学受験公民's advantage is iOS requirement (14.0 vs 17.2). On price there is nothing between them.

Both are free to download. 習熟！中学受験公民 sells 1 in-app purchase, starting at $2.99 per month. 補数チャレンジ！ asks for nothing beyond the download.

## The numbers

| Metric | 補数チャレンジ！ | 習熟！中学受験公民 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Size | 2 MB | 133 MB |
| Requires iOS | 17.2 | **14.0** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhiko Maruyama](https://appshunter.io/developer/1731223811) | [Motoki Takata](https://appshunter.io/developer/1621307537) |

## What reviewers say

### 補数チャレンジ！

[App page](https://appshunter.io/ios/app/id6478446057)

**In-app purchases:** none


### 習熟！中学受験公民

[App page](https://appshunter.io/ios/app/id6754214213)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の非表示 | $2.99 | per month |


## Frequently asked questions

### Is 補数チャレンジ！ free?

補数チャレンジ！ is free to download, with no in-app purchases.

### Is 習熟！中学受験公民 free?

習熟！中学受験公民 is free to download, with in-app purchases available.

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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.*