# Prime Pick vs 素因数分解クイズ

The clearest difference is ads: Prime Pick at none against 素因数分解クイズ's shown. Prime Pick also leads on update cadence (every 2 days vs every 5 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Prime Pick ships an update every 2 days, 素因数分解クイズ every 5 days. The most recent releases landed on June 1, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Prime Pick | 素因数分解クイズ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 5 MB | 26 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takumi Muraishi](https://appshunter.io/developer/1532028263) | [YUKI WATANABE](https://appshunter.io/developer/1724288537) |

## What reviewers say

### Prime Pick

[App page](https://appshunter.io/ios/app/prime-pick/id6502471694)

**Features:** macOS Compatibility

**In-app purchases:** none


### 素因数分解クイズ

[App page](https://appshunter.io/ios/app/1/id6740989986)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prime Pick free?

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

### Is 素因数分解クイズ free?

素因数分解クイズ is free to download, with no in-app purchases.

### Do Prime Pick or 素因数分解クイズ have ads?

素因数分解クイズ shows ads; Prime Pick does not.

### Which is updated more often, Prime Pick or 素因数分解クイズ?

Prime Pick ships an update every 2 days, and 素因数分解クイズ every 5 days. Most recently, Prime Pick was updated on June 1, 2026 and 素因数分解クイズ on May 19, 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.*