# QB説明　３年　わり算 vs ChallengeAddition&Subtraction

The clearest difference is price: ChallengeAddition&Subtraction at Free against QB説明　３年　わり算's $4.99. ChallengeAddition&Subtraction also leads on update cadence (fortnightly vs every 34 months) and device support (3 vs 1). QB説明　３年　わり算's advantage is iOS requirement (9.0 vs 11.0). On ads and in-app purchases there is nothing between them.

ChallengeAddition&Subtraction is free to download; QB説明　３年　わり算 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QB説明　３年　わり算 ships an update every 34 months, ChallengeAddition&Subtraction fortnightly. The most recent releases landed on October 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | QB説明　３年　わり算 | ChallengeAddition&Subtraction |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Fortnightly** |
| Size | 55 MB | 58 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) | [koichi kodama](https://appshunter.io/developer/1679265192) |

## What reviewers say

### QB説明　３年　わり算

[App page](https://appshunter.io/ios/app/qb/id1446815888)

**In-app purchases:** none


### ChallengeAddition&Subtraction

[App page](https://appshunter.io/ios/app/challengeaddition-and-subtraction/id6446822143)

**In-app purchases:** none


## Frequently asked questions

### Is QB説明　３年　わり算 free?

QB説明　３年　わり算 costs $4.99, with no in-app purchases.

### Is ChallengeAddition&Subtraction free?

ChallengeAddition&Subtraction is free to download, with no in-app purchases.

### Do QB説明　３年　わり算 or ChallengeAddition&Subtraction have ads?

Neither QB説明　３年　わり算 nor ChallengeAddition&Subtraction shows ads.

### Which is updated more often, QB説明　３年　わり算 or ChallengeAddition&Subtraction?

QB説明　３年　わり算 ships an update every 34 months, and ChallengeAddition&Subtraction fortnightly. Most recently, QB説明　３年　わり算 was updated on October 10, 2026 and ChallengeAddition&Subtraction on November 3, 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.*