# もじあつめ for Kids vs QB説明　４年　わり算の筆算２

The clearest difference is price: もじあつめ for Kids at Free against QB説明　４年　わり算の筆算２'s $4.99. もじあつめ for Kids also leads on update cadence (every 9 months vs every 33 months) and device support (3 vs 1). QB説明　４年　わり算の筆算２'s advantage is in-app purchases (none vs 1). On ads and iOS requirement there is nothing between them.

もじあつめ for Kids is free to download; QB説明　４年　わり算の筆算２ costs $4.99 up front. もじあつめ for Kids sells 1 one-off in-app purchase. QB説明　４年　わり算の筆算２ asks for nothing beyond the download.

もじあつめ for Kids ships an update every 9 months, QB説明　４年　わり算の筆算２ every 33 months. The most recent releases landed on November 6, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | もじあつめ for Kids | QB説明　４年　わり算の筆算２ |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 33 months |
| Size | 32 MB | 9 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) |

## What reviewers say

### もじあつめ for Kids

[App page](https://appshunter.io/ios/app/for-kids/id1184206705)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フルパッケージ | $1.99 | one-time |


### QB説明　４年　わり算の筆算２

[App page](https://appshunter.io/ios/app/qb/id1411871468)

**In-app purchases:** none


## Frequently asked questions

### Is もじあつめ for Kids free?

もじあつめ for Kids is free to download, with in-app purchases available.

### Is QB説明　４年　わり算の筆算２ free?

QB説明　４年　わり算の筆算２ costs $4.99, with no in-app purchases.

### Do もじあつめ for Kids or QB説明　４年　わり算の筆算２ have ads?

Neither もじあつめ for Kids nor QB説明　４年　わり算の筆算２ shows ads.

### Which is updated more often, もじあつめ for Kids or QB説明　４年　わり算の筆算２?

もじあつめ for Kids ships an update every 9 months, and QB説明　４年　わり算の筆算２ every 33 months. Most recently, もじあつめ for Kids was updated on November 6, 2026 and QB説明　４年　わり算の筆算２ on October 26, 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.*