# 素数検定 vs Prime Nerd

素数検定 and Prime Nerd are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | 素数検定 | Prime Nerd |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 3 days |
| Monetization | — | Ad-supported |
| Size | 4 MB | 50 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [kenichi kato](https://appshunter.io/developer/913467537) | [Hiroki Sekimoto](https://appshunter.io/developer/1877884860) |

## What reviewers say

### 素数検定

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

**In-app purchases:** none


### Prime Nerd

[App page](https://appshunter.io/ios/app/prime-nerd/id6760544446)

Tap prime numbers as they float across the screen within a time limit. This speed math game offers multiple difficulty levels, a combo system for score multipliers, and a training mode to hone your skills. Compete globally on the leaderboard and customize your challenge with digit selection.

**Highlights:** Identify prime numbers, Timed challenges, Global leaderboard, Multiple difficulty levels, Combo score multiplier, Training mode, Dark/Light theme

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

**In-app purchases:** none


## Frequently asked questions

### Is 素数検定 free?

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

### Is Prime Nerd free?

Prime Nerd 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.*