# QB説明　４年　垂直と平行 vs 中学歴史ー１問１答

The clearest difference is price: 中学歴史ー１問１答 at Free against QB説明　４年　垂直と平行's $4.99. 中学歴史ー１問１答 also leads on update cadence (every 14 months vs every 32 months). QB説明　４年　垂直と平行's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 18.2). On ads and device support there is nothing between them.

中学歴史ー１問１答 is free to download; QB説明　４年　垂直と平行 costs $4.99 up front. 中学歴史ー１問１答 sells 1 one-off in-app purchase. QB説明　４年　垂直と平行 asks for nothing beyond the download.

QB説明　４年　垂直と平行 ships an update every 32 months, 中学歴史ー１問１答 every 14 months. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | QB説明　４年　垂直と平行 | 中学歴史ー１問１答 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 14 months** |
| Size | 8 MB | 41 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) | [Norio Takeda](https://appshunter.io/developer/1485221811) |

## What reviewers say

### QB説明　４年　垂直と平行

[App page](https://appshunter.io/ios/app/qb/id1005445020)

**In-app purchases:** none


### 中学歴史ー１問１答

[App page](https://appshunter.io/ios/app/id1524256888)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ゴールドコイン | $7.99 | one-time |


## Frequently asked questions

### Is QB説明　４年　垂直と平行 free?

QB説明　４年　垂直と平行 costs $4.99, with no in-app purchases.

### Is 中学歴史ー１問１答 free?

中学歴史ー１問１答 is free to download, with in-app purchases available.

### Do QB説明　４年　垂直と平行 or 中学歴史ー１問１答 have ads?

Neither QB説明　４年　垂直と平行 nor 中学歴史ー１問１答 shows ads.

### Which is updated more often, QB説明　４年　垂直と平行 or 中学歴史ー１問１答?

QB説明　４年　垂直と平行 ships an update every 32 months, and 中学歴史ー１問１答 every 14 months. Most recently, QB説明　４年　垂直と平行 was updated on September 27, 2026 and 中学歴史ー１問１答 on September 21, 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.*