# Prime Nerd vs １％の不運

The clearest difference is review sentiment: １％の不運 at 100% against Prime Nerd's 0%. １％の不運 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Prime Nerd's advantage is update cadence (every 3 days vs weekly). On price, ads and in-app purchases there is nothing between them.

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

Prime Nerd ships an update every 3 days, １％の不運 weekly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Prime Nerd | １％の不運 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Ad-supported | — |
| Size | 50 MB | 105 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Sekimoto](https://appshunter.io/developer/1877884860) | [Yuki Noda](https://appshunter.io/developer/1763773513) |

## What reviewers say

### 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


### １％の不運

[App page](https://appshunter.io/ios/app/id6764234730)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prime Nerd free?

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

### Is １％の不運 free?

１％の不運 is free to download, with no in-app purchases.

### Do Prime Nerd or １％の不運 have ads?

Both Prime Nerd and １％の不運 show ads.

### Which is updated more often, Prime Nerd or １％の不運?

Prime Nerd ships an update every 3 days, and １％の不運 weekly. Most recently, Prime Nerd was updated on October 11, 2026 and １％の不運 on October 9, 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.*