# PrimeNumbersGirl vs クイズ for ぼっち・ざ・ろっく

The clearest difference is in-app purchases: クイズ for ぼっち・ざ・ろっく at none against PrimeNumbersGirl's 2. クイズ for ぼっち・ざ・ろっく also leads on ads (none vs shown). PrimeNumbersGirl's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. PrimeNumbersGirl sells 2 one-off in-app purchases. クイズ for ぼっち・ざ・ろっく asks for nothing beyond the download.

PrimeNumbersGirl ships an update every 5 weeks, クイズ for ぼっち・ざ・ろっく every 2 months. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PrimeNumbersGirl | クイズ for ぼっち・ざ・ろっく |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 2 months |
| 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 ぼっち・ざ・ろっく

[App page](https://appshunter.io/ios/app/for/id6778325812)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrimeNumbersGirl free?

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

### Is クイズ for ぼっち・ざ・ろっく free?

クイズ for ぼっち・ざ・ろっく is free to download, with no in-app purchases.

### Do PrimeNumbersGirl or クイズ for ぼっち・ざ・ろっく have ads?

PrimeNumbersGirl shows ads; クイズ for ぼっち・ざ・ろっく does not.

### Which is updated more often, PrimeNumbersGirl or クイズ for ぼっち・ざ・ろっく?

PrimeNumbersGirl ships an update every 5 weeks, and クイズ for ぼっち・ざ・ろっく every 2 months. Most recently, PrimeNumbersGirl was updated on November 2, 2026 and クイズ for ぼっち・ざ・ろっく on November 10, 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.*