# オームの法則 計算問題 vs 中学数学 Be Study

The clearest difference is review sentiment: オームの法則 計算問題 at 86% against 中学数学 Be Study's 50%. オームの法則 計算問題 also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). 中学数学 Be Study's advantage is update cadence (fortnightly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 中学数学 Be Study sells 3 in-app purchases, starting at $1.99 per month. オームの法則 計算問題 asks for nothing beyond the download.

オームの法則 計算問題 ships an update every 6 weeks, 中学数学 Be Study fortnightly. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | オームの法則 計算問題 | 中学数学 Be Study |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **85.7% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 13 MB | 84 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manabu Narawa](https://appshunter.io/developer/1027712863) | [Tomohito Kii](https://appshunter.io/developer/1689523321) |

## What reviewers say

### オームの法則 計算問題

[App page](https://appshunter.io/ios/app/id1260272873)

Practice Ohm's Law calculations with over 40 random problem patterns. This app helps students master finding resistance, voltage, and current in various circuit configurations. It's ideal for junior high students and high schoolers reviewing fundamentals.

**Highlights:** Ohm's Law calculation practice, Over 40 problem patterns, Randomly generated problems, Single and multiple resistor circuits, Find resistance, voltage, and current, Suitable for review

**Features:** Vision Pro support

**In-app purchases:** none


### 中学数学 Be Study

[App page](https://appshunter.io/ios/app/be-study/id6535654198)

This app helps students master junior high school math concepts. It offers practice in calculation, geometry, and functions, serving as a comprehensive drill and test preparation tool.

**Highlights:** Junior high school mathematics coverage, Calculation practice, Geometry lessons, Functions learning, Drill and test preparation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - JH Math Be Study | $1.99 | per month |
| Annual - JH Math Be Study | $14.99 | per year |
| Premium (Lifetime) | $24.99 | one-time |


## Frequently asked questions

### Is オームの法則 計算問題 free?

オームの法則 計算問題 is free to download, with no in-app purchases.

### Is 中学数学 Be Study free?

中学数学 Be Study is free to download, with in-app purchases available.

### Do オームの法則 計算問題 or 中学数学 Be Study have ads?

Both オームの法則 計算問題 and 中学数学 Be Study show ads.

### Which is updated more often, オームの法則 計算問題 or 中学数学 Be Study?

オームの法則 計算問題 ships an update every 6 weeks, and 中学数学 Be Study fortnightly. Most recently, オームの法則 計算問題 was updated on October 17, 2026 and 中学数学 Be Study on October 20, 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.*