# 高校化学・化学基礎の一問一答：ケムクイズ vs Structura

The clearest difference is ads: Structura at none against 高校化学・化学基礎の一問一答：ケムクイズ's shown. Structura also leads on update cadence (every 4 days vs every 10 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 高校化学・化学基礎の一問一答：ケムクイズ sells 1 one-off in-app purchase and Structura sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

高校化学・化学基礎の一問一答：ケムクイズ ships an update every 10 days, Structura every 4 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 高校化学・化学基礎の一問一答：ケムクイズ | Structura |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 18 MB | 100 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TomatoAppLab](https://appshunter.io/developer/1676711750) | [SNAPLACE](https://appshunter.io/developer/6790258232) |

## What reviewers say

### 高校化学・化学基礎の一問一答：ケムクイズ

[App page](https://appshunter.io/ios/app/id6763279883)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告をずっと非表示にする | $3.99 | one-time |


### Structura

[App page](https://appshunter.io/ios/app/structura-element-synthesis/id6795030898)

Learn chemical reactions by playing a falling-block puzzle game. Combine elements and ions to build compounds, with over 350 reactions covered. Practice recall with quizzes and tests, and experiment freely with all elements.

**Highlights:** Falling-block puzzle gameplay, Element and ion combination, 356 chemical reactions covered, 46 learning stages, In-game quizzes and tests, Free experiment mode, Visual representation of compounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Units | $2.99 | one-time |


## Frequently asked questions

### Is 高校化学・化学基礎の一問一答：ケムクイズ free?

高校化学・化学基礎の一問一答：ケムクイズ is free to download, with in-app purchases available.

### Is Structura free?

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

### Do 高校化学・化学基礎の一問一答：ケムクイズ or Structura have ads?

高校化学・化学基礎の一問一答：ケムクイズ shows ads; Structura does not.

### Which is updated more often, 高校化学・化学基礎の一問一答：ケムクイズ or Structura?

高校化学・化学基礎の一問一答：ケムクイズ ships an update every 10 days, and Structura every 4 days. Most recently, 高校化学・化学基礎の一問一答：ケムクイズ was updated on November 7, 2026 and Structura on November 8, 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.*