# 日本城郭検定マスター 1000問 vs Structura

The clearest difference is in-app purchases: 日本城郭検定マスター 1000問 at none against Structura's 1. 日本城郭検定マスター 1000問 also leads on iOS requirement (15.1 vs 17.0). On ads and device support there is nothing between them.

## The numbers

| Metric | 日本城郭検定マスター 1000問 | Structura |
| --- | --- | --- |
| Price | — | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Monetization | — | Freemium |
| Size | 34 MB | 100 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [satoshi yoshida](https://appshunter.io/developer/1873856165) | [SNAPLACE LLC](https://appshunter.io/developer/6790258232) |

## What reviewers say

### 日本城郭検定マスター 1000問

[App page](https://appshunter.io/ios/app/1000/id6764057904)

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

**In-app purchases:** none


### 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 日本城郭検定マスター 1000問 free?

Pricing for 日本城郭検定マスター 1000問 is not currently listed on the App Store.

### Is Structura free?

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

### Do 日本城郭検定マスター 1000問 or Structura have ads?

Neither 日本城郭検定マスター 1000問 nor Structura shows ads.

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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.*