# 瞬間素因数分解 Prime Factorization vs 連立方程式

The clearest difference is in-app purchases: 連立方程式 at none against 瞬間素因数分解 Prime Factorization's 1. 瞬間素因数分解 Prime Factorization's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 瞬間素因数分解 Prime Factorization sells 1 one-off in-app purchase. 連立方程式 asks for nothing beyond the download.

## The numbers

| Metric | 瞬間素因数分解 Prime Factorization | 連立方程式 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Weekly | — |
| Size | 3 MB | 6 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [YUSUKE MIZUNO](https://appshunter.io/developer/1729948508) | [Risako Asai](https://appshunter.io/developer/1671273580) |

## What reviewers say

### 瞬間素因数分解 Prime Factorization

[App page](https://appshunter.io/ios/app/prime-factorization/id6478605149)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $1.99 | one-time |


### 連立方程式

[App page](https://appshunter.io/ios/app/id6483928960)

**In-app purchases:** none


## Frequently asked questions

### Is 瞬間素因数分解 Prime Factorization free?

瞬間素因数分解 Prime Factorization is free to download, with in-app purchases available.

### Is 連立方程式 free?

連立方程式 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.*