# 中学数学 正負の数 vs MultiplicationTraining

The clearest difference is update cadence: MultiplicationTraining at every 4 months against 中学数学 正負の数's every 13 months. 中学数学 正負の数's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

中学数学 正負の数 ships an update every 13 months, MultiplicationTraining every 4 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 中学数学 正負の数 | MultiplicationTraining |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 4 months** |
| Monetization | Ad-supported | — |
| Size | 14 MB | 5 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Manabu Narawa](https://appshunter.io/developer/1027712863) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### 中学数学 正負の数

[App page](https://appshunter.io/ios/app/id1358566610)

Practice over 1000 math problems focused on positive and negative numbers, the first unit taught in junior high. This app offers input-based answers, not multiple choice, to build calculation accuracy and speed. It's suitable for daily study, review, and high school entrance exam preparation.

**Highlights:** 1000+ practice problems, Input-based answers, Fraction and decimal support, Multiple difficulty levels, Covers all operations and powers, Suitable for review and exam prep

**Features:** macOS Compatibility

**In-app purchases:** none


### MultiplicationTraining

[App page](https://appshunter.io/ios/app/multiplicationtraining/id6477765058)

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

**In-app purchases:** none


## Frequently asked questions

### Is 中学数学 正負の数 free?

中学数学 正負の数 is free to download, with no in-app purchases.

### Is MultiplicationTraining free?

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

### Do 中学数学 正負の数 or MultiplicationTraining have ads?

Both 中学数学 正負の数 and MultiplicationTraining show ads.

### Which is updated more often, 中学数学 正負の数 or MultiplicationTraining?

中学数学 正負の数 ships an update every 13 months, and MultiplicationTraining every 4 months. Most recently, 中学数学 正負の数 was updated on October 24, 2026 and MultiplicationTraining on October 21, 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.*