# QB説明　６年　場合の数 vs 速読チャレンジ

The clearest difference is price: 速読チャレンジ at Free against QB説明　６年　場合の数's $5.99. 速読チャレンジ also leads on update cadence (fortnightly vs every 36 months). QB説明　６年　場合の数's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 17.0). On ads and device support there is nothing between them.

速読チャレンジ is free to download; QB説明　６年　場合の数 costs $5.99 up front. 速読チャレンジ sells 1 one-off in-app purchase. QB説明　６年　場合の数 asks for nothing beyond the download.

QB説明　６年　場合の数 ships an update every 36 months, 速読チャレンジ fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | QB説明　６年　場合の数 | 速読チャレンジ |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Fortnightly** |
| Size | 11 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) | [SANWA Inc.](https://appshunter.io/developer/1878028373) |

## What reviewers say

### QB説明　６年　場合の数

[App page](https://appshunter.io/ios/app/qb/id1104072657)

**In-app purchases:** none


### 速読チャレンジ

[App page](https://appshunter.io/ios/app/id6760859470)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 速読チャレンジ Pro | $5.99 | one-time |


## Frequently asked questions

### Is QB説明　６年　場合の数 free?

QB説明　６年　場合の数 costs $5.99, with no in-app purchases.

### Is 速読チャレンジ free?

速読チャレンジ is free to download, with in-app purchases available.

### Do QB説明　６年　場合の数 or 速読チャレンジ have ads?

Neither QB説明　６年　場合の数 nor 速読チャレンジ shows ads.

### Which is updated more often, QB説明　６年　場合の数 or 速読チャレンジ?

QB説明　６年　場合の数 ships an update every 36 months, and 速読チャレンジ fortnightly. Most recently, QB説明　６年　場合の数 was updated on October 24, 2026 and 速読チャレンジ on October 25, 2026.

---

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