# SOINSU math puzzle vs 素数検定

The clearest difference is in-app purchases: 素数検定 at none against SOINSU math puzzle's 2. SOINSU math puzzle's advantage is device support and iOS requirement (12.0 vs 16.4). On price there is nothing between them.

Both are free to download. SOINSU math puzzle sells 2 one-off in-app purchases. 素数検定 asks for nothing beyond the download.

## The numbers

| Metric | SOINSU math puzzle | 素数検定 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 105 MB | 4 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [GAIBAKO co., Ltd.](https://appshunter.io/developer/1548482925) | [kenichi kato](https://appshunter.io/developer/913467537) |

## What reviewers say

### SOINSU math puzzle

[App page](https://appshunter.io/ios/app/soinsu-math-puzzle/id6444055103)

Engage in a brain-training puzzle game focused on prime factorization. Anyone can learn the fun of numbers through this simple, time-killing activity. Enjoy the challenge of dividing numbers into prime factors with a high-tempo soundtrack.

**Highlights:** Prime factorization gameplay, Brain training puzzles, Mental arithmetic practice, Cyber visuals, Trance music soundtrack, Multiple game modes, Prime number collection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add no time limit mode | $0.99 | one-time |
| Hidden Ads | $2.99 | one-time |


### 素数検定

[App page](https://appshunter.io/ios/app/id6450617905)

**In-app purchases:** none


## Frequently asked questions

### Is SOINSU math puzzle free?

SOINSU math puzzle is free to download, with in-app purchases available.

### Is 素数検定 free?

素数検定 is free to download, with no in-app purchases.

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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.*