# PrimeNumbersGirl vs クイズ for 学園アイドルマスター

The clearest difference is ads: クイズ for 学園アイドルマスター at none against PrimeNumbersGirl's shown. クイズ for 学園アイドルマスター also leads on update cadence (every 2 weeks vs every 5 weeks). PrimeNumbersGirl's advantage is iOS requirement (12.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PrimeNumbersGirl sells 2 one-off in-app purchases and クイズ for 学園アイドルマスター sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PrimeNumbersGirl ships an update every 5 weeks, クイズ for 学園アイドルマスター every 2 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PrimeNumbersGirl | クイズ for 学園アイドルマスター |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 163 MB | 43 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) | [takamoto sakai](https://appshunter.io/developer/1896195459) |

## What reviewers say

### PrimeNumbersGirl

[App page](https://appshunter.io/ios/app/primenumbersgirl/id1329465291)

Embark on a love story adventure centered around prime numbers. Engage in a simple yet captivating game where you must quickly determine if given numbers are prime. Success unlocks positive outcomes, while incorrect answers may lead to playful reprimands.

**Highlights:** Prime number identification gameplay, Interactive story with a mysterious girl, Judgment-based challenges, Unlockable events based on performance, Playful consequences for wrong answers

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide ads | $0.99 | one-time |
| 金の素数ガチャ | $0.99 | one-time |


### クイズ for 学園アイドルマスター

[App page](https://appshunter.io/ios/app/for/id6783831252)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解説フル解放（買い切り） | $1.99 | one-time |


## Frequently asked questions

### Is PrimeNumbersGirl free?

PrimeNumbersGirl is free to download, with in-app purchases available.

### Is クイズ for 学園アイドルマスター free?

クイズ for 学園アイドルマスター is free to download, with in-app purchases available.

### Do PrimeNumbersGirl or クイズ for 学園アイドルマスター have ads?

PrimeNumbersGirl shows ads; クイズ for 学園アイドルマスター does not.

### Which is updated more often, PrimeNumbersGirl or クイズ for 学園アイドルマスター?

PrimeNumbersGirl ships an update every 5 weeks, and クイズ for 学園アイドルマスター every 2 weeks. Most recently, PrimeNumbersGirl was updated on November 2, 2026 and クイズ for 学園アイドルマスター on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*