# わかる！算数 小学４年【上】 vs Math Ninjas FULL

The clearest difference is price: Math Ninjas FULL at $3.99 against わかる！算数 小学４年【上】's $9.99. Math Ninjas FULL also leads on update cadence (every 12 months vs every 37 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

わかる！算数 小学４年【上】 costs $9.99 and Math Ninjas FULL $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

わかる！算数 小学４年【上】 ships an update every 37 months, Math Ninjas FULL every 12 months. The most recent releases landed on September 10, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | わかる！算数 小学４年【上】 | Math Ninjas FULL |
| --- | --- | --- |
| Price | $9.99 | **$3.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 12 months** |
| Size | 50 MB | 198 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [がくげい](https://appshunter.io/developer/415230275) | [HARASHOW Interactive](https://appshunter.io/developer/356148278) |

## What reviewers say

### わかる！算数 小学４年【上】

[App page](https://appshunter.io/ios/app/id897322501)

**In-app purchases:** none


### Math Ninjas FULL

[App page](https://appshunter.io/ios/app/math-ninjas-full/id1534842186)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is わかる！算数 小学４年【上】 free?

わかる！算数 小学４年【上】 costs $9.99, with no in-app purchases.

### Is Math Ninjas FULL free?

Math Ninjas FULL costs $3.99, with no in-app purchases.

### Do わかる！算数 小学４年【上】 or Math Ninjas FULL have ads?

Neither わかる！算数 小学４年【上】 nor Math Ninjas FULL shows ads.

### Which is updated more often, わかる！算数 小学４年【上】 or Math Ninjas FULL?

わかる！算数 小学４年【上】 ships an update every 37 months, and Math Ninjas FULL every 12 months. Most recently, わかる！算数 小学４年【上】 was updated on September 10, 2026 and Math Ninjas FULL on August 22, 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.*