# 数学好きのラクガキパズル vs ChemicalMemoryGame

The clearest difference is in-app purchases: ChemicalMemoryGame at none against 数学好きのラクガキパズル's 4. 数学好きのラクガキパズル's advantage is ads (none vs shown) and update cadence (fortnightly vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 数学好きのラクガキパズル sells 4 one-off in-app purchases. ChemicalMemoryGame asks for nothing beyond the download.

数学好きのラクガキパズル ships an update fortnightly, ChemicalMemoryGame monthly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 数学好きのラクガキパズル | ChemicalMemoryGame |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Size | 637 MB | 297 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kouhei kobayashi](https://appshunter.io/developer/1635774023) | [soichiro totoki](https://appshunter.io/developer/1755863943) |

## What reviewers say

### 数学好きのラクガキパズル

[App page](https://appshunter.io/ios/app/id6468378892)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 二年生の追加ステージ | $0.99 | one-time |
| 3年生の追加ステージ | $0.99 | one-time |
| 1年生の追加ステージ | $0.99 | one-time |
| 1〜3年生の追加ステージ | $1.99 | one-time |


### ChemicalMemoryGame

[App page](https://appshunter.io/ios/app/chemicalmemorygame/id6743126799)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 数学好きのラクガキパズル free?

数学好きのラクガキパズル is free to download, with in-app purchases available.

### Is ChemicalMemoryGame free?

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

### Do 数学好きのラクガキパズル or ChemicalMemoryGame have ads?

ChemicalMemoryGame shows ads; 数学好きのラクガキパズル does not.

### Which is updated more often, 数学好きのラクガキパズル or ChemicalMemoryGame?

数学好きのラクガキパズル ships an update fortnightly, and ChemicalMemoryGame monthly. Most recently, 数学好きのラクガキパズル was updated on October 6, 2026 and ChemicalMemoryGame on October 1, 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.*