# ぶんすう　算数計算「ぶんすうくん」 vs 楽しい理科小４（ダンケ）

The clearest difference is in-app purchases: ぶんすう　算数計算「ぶんすうくん」 at none against 楽しい理科小４（ダンケ）'s 1. ぶんすう　算数計算「ぶんすうくん」 also leads on update cadence (weekly vs every 13 months) and iOS requirement (13.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. 楽しい理科小４（ダンケ） sells 1 one-off in-app purchase. ぶんすう　算数計算「ぶんすうくん」 asks for nothing beyond the download.

ぶんすう　算数計算「ぶんすうくん」 ships an update weekly, 楽しい理科小４（ダンケ） every 13 months. Both last shipped on October 4, 2026.

## The numbers

| Metric | ぶんすう　算数計算「ぶんすうくん」 | 楽しい理科小４（ダンケ） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 13 months |
| Size | 33 MB | 24 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SHINGO SATO](https://appshunter.io/developer/1484951923) | [Norio Takeda](https://appshunter.io/developer/1485221811) |

## What reviewers say

### ぶんすう　算数計算「ぶんすうくん」

[App page](https://appshunter.io/ios/app/id1492282938)

**Features:** macOS Compatibility

**In-app purchases:** none


### 楽しい理科小４（ダンケ）

[App page](https://appshunter.io/ios/app/id1503349913)

**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 ぶんすう　算数計算「ぶんすうくん」 free?

ぶんすう　算数計算「ぶんすうくん」 is free to download, with no in-app purchases.

### Is 楽しい理科小４（ダンケ） free?

楽しい理科小４（ダンケ） is free to download, with in-app purchases available.

### Do ぶんすう　算数計算「ぶんすうくん」 or 楽しい理科小４（ダンケ） have ads?

Neither ぶんすう　算数計算「ぶんすうくん」 nor 楽しい理科小４（ダンケ） shows ads.

### Which is updated more often, ぶんすう　算数計算「ぶんすうくん」 or 楽しい理科小４（ダンケ）?

ぶんすう　算数計算「ぶんすうくん」 ships an update weekly, and 楽しい理科小４（ダンケ） every 13 months. Most recently, ぶんすう　算数計算「ぶんすうくん」 was updated on October 4, 2026 and 楽しい理科小４（ダンケ） on October 4, 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.*