# 中2連立方程式 計算問題 vs BasicClassForJ1

The clearest difference is update cadence: BasicClassForJ1 at every 3 months against 中2連立方程式 計算問題's every 38 months. 中2連立方程式 計算問題's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

中2連立方程式 計算問題 ships an update every 38 months, BasicClassForJ1 every 3 months. The most recent releases landed on October 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 中2連立方程式 計算問題 | BasicClassForJ1 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 38 months | **Every 3 months** |
| Monetization | Ad-supported | — |
| Size | 14 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Manabu Narawa](https://appshunter.io/developer/1027712863) | [Ayako Asayama](https://appshunter.io/developer/1702795563) |

## What reviewers say

### 中2連立方程式 計算問題

[App page](https://appshunter.io/ios/app/2/id1434256775)

Practice solving simultaneous equations for 2nd-year junior high students. Includes detailed solutions and example problems to help those new to or struggling with the concept. Master basic problems to build confidence for high school entrance exams.

**Highlights:** Simultaneous equation practice, Detailed step-by-step solutions, Example problem explanations, Focus on basic problem mastery, Preparation for high school entrance exams

**Features:** macOS Compatibility

**In-app purchases:** none


### BasicClassForJ1

[App page](https://appshunter.io/ios/app/basicclassforj1-1/id6462406737)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 中2連立方程式 計算問題 free?

中2連立方程式 計算問題 is free to download, with no in-app purchases.

### Is BasicClassForJ1 free?

BasicClassForJ1 is free to download, with no in-app purchases.

### Do 中2連立方程式 計算問題 or BasicClassForJ1 have ads?

Both 中2連立方程式 計算問題 and BasicClassForJ1 show ads.

### Which is updated more often, 中2連立方程式 計算問題 or BasicClassForJ1?

中2連立方程式 計算問題 ships an update every 38 months, and BasicClassForJ1 every 3 months. Most recently, 中2連立方程式 計算問題 was updated on October 1, 2026 and BasicClassForJ1 on September 13, 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.*