# 楽しい 小学校 4年生 算数(算数ドリル) vs Math Brain

The clearest difference is in-app purchases: Math Brain at none against 楽しい 小学校 4年生 算数(算数ドリル)'s 1. Math Brain also leads on update cadence (weekly vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 楽しい 小学校 4年生 算数(算数ドリル) sells 1 one-off in-app purchase. Math Brain asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 楽しい 小学校 4年生 算数(算数ドリル) against 5.0 for Math Brain. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

楽しい 小学校 4年生 算数(算数ドリル) ships an update every 3 months, Math Brain weekly. The most recent releases landed on October 23, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 楽しい 小学校 4年生 算数(算数ドリル) | Math Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/4/id1301772774/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/math-brain-handwriting-drills/id1623538548/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 69.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 95 MB | 82 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [株式会社EIHSOFT](https://appshunter.io/developer/1541782404) | [Ryuichi Aida](https://appshunter.io/developer/1553473481) |

## What reviewers say

### 楽しい 小学校 4年生 算数(算数ドリル)

[App page](https://appshunter.io/ios/app/4/id1301772774)

This app supports 4th-grade math learning based on the Ministry of Education curriculum. It offers easy-to-use practice for specific topics, allowing for focused study during short breaks. Includes explanations for parents and adjustable difficulty levels.

**Highlights:** 4th-grade math curriculum aligned, Topic-specific practice modules, Adjustable difficulty levels, Parental support with explanations, Monthly learning progression guide, Easy-to-use interface

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $3.99 | one-time |


### Math Brain

[App page](https://appshunter.io/ios/app/math-brain-handwriting-drills/id1623538548)

This app offers a fun, game-like approach to mastering basic arithmetic. Users can practice addition, subtraction, and multiplication by handwriting answers in interactive grids. Track your progress, compete with others globally, and improve math skills through intuitive gameplay.

**Highlights:** Handwritten math input, Daily progress charts, Global user rankings, Competitive mode, Multiple game modes (5x5, 10x10), Addition, subtraction, multiplication practice

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 楽しい 小学校 4年生 算数(算数ドリル) free?

楽しい 小学校 4年生 算数(算数ドリル) is free to download, with in-app purchases available.

### Is Math Brain free?

Math Brain is free to download, with no in-app purchases.

### Which has better reviews, 楽しい 小学校 4年生 算数(算数ドリル) or Math Brain?

楽しい 小学校 4年生 算数(算数ドリル) and Math Brain are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 楽しい 小学校 4年生 算数(算数ドリル) or Math Brain have ads?

Both 楽しい 小学校 4年生 算数(算数ドリル) and Math Brain show ads.

### Which is updated more often, 楽しい 小学校 4年生 算数(算数ドリル) or Math Brain?

楽しい 小学校 4年生 算数(算数ドリル) ships an update every 3 months, and Math Brain weekly. Most recently, 楽しい 小学校 4年生 算数(算数ドリル) was updated on October 23, 2026 and Math Brain on September 29, 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.*