# 10を作れ！【脳トレ】 vs 素因数分解パズル

The clearest difference is in-app purchases: 10を作れ！【脳トレ】 at none against 素因数分解パズル's 10. 素因数分解パズル's advantage is update cadence (every 8 days vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 素因数分解パズル sells 10 one-off in-app purchases. 10を作れ！【脳トレ】 asks for nothing beyond the download.

10を作れ！【脳トレ】 ships an update every 9 months, 素因数分解パズル every 8 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 10を作れ！【脳トレ】 | 素因数分解パズル |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6751097772/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 102 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YUKI HAYANO](https://appshunter.io/developer/874819360) | [Chikai Ito](https://appshunter.io/developer/1480561746) |

## What reviewers say

### 10を作れ！【脳トレ】

[App page](https://appshunter.io/ios/app/10/id1092877204)

**Features:** macOS Compatibility

**In-app purchases:** none


### 素因数分解パズル

[App page](https://appshunter.io/ios/app/id6751097772)

A unique math puzzle game where you shoot prime number bullets to break targets. Strategically place targets based on their numbers and the prime bullets you have. Enjoy 999 levels of brain-teasing fun that can be played offline.

**Highlights:** Unique prime number x math puzzle rules, 999 levels for long-term play, Simple tap controls, Quick play and endless modes, Offline play supported, Ranking feature

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 宝石80個 | $0.49 | one-time |
| 宝石250個 | $1.99 | one-time |
| スターターパック | $2.99 | one-time |
| 広告削除 | $5.99 | one-time |
| レギュラーパック | $5.99 | one-time |
| ピンチ脱出パック | $5.99 | one-time |
| 宝石1100個 | $7.99 | one-time |
| 宝石2250個 | $14.99 | one-time |
| 宝石5000個 | $29.99 | one-time |
| 宝石10500個 | $59.99 | one-time |


## Frequently asked questions

### Is 10を作れ！【脳トレ】 free?

10を作れ！【脳トレ】 is free to download, with no in-app purchases.

### Is 素因数分解パズル free?

素因数分解パズル is free to download, with in-app purchases available.

### Do 10を作れ！【脳トレ】 or 素因数分解パズル have ads?

Both 10を作れ！【脳トレ】 and 素因数分解パズル show ads.

### Which is updated more often, 10を作れ！【脳トレ】 or 素因数分解パズル?

10を作れ！【脳トレ】 ships an update every 9 months, and 素因数分解パズル every 8 days. Most recently, 10を作れ！【脳トレ】 was updated on October 26, 2026 and 素因数分解パズル on October 30, 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.*