# 危険物乙種第４類：試験対策アプリ vs 危険物乙4 合格対策

The clearest difference is in-app purchases: 危険物乙種第４類：試験対策アプリ at none against 危険物乙4 合格対策's 1. 危険物乙4 合格対策's advantage is iOS requirement (13.0 vs 18.2). On price there is nothing between them.

Both are free to download. 危険物乙4 合格対策 sells 1 one-off in-app purchase. 危険物乙種第４類：試験対策アプリ asks for nothing beyond the download.

## The numbers

| Metric | 危険物乙種第４類：試験対策アプリ | 危険物乙4 合格対策 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Size | 5 MB | 132 MB |
| Requires iOS | 18.2 | **13.0** |
| Age rating | 4+ | 4+ |
| Developer | [reiko hori](https://appshunter.io/developer/1777370692) | [Jongmin Kim](https://appshunter.io/developer/1693759760) |

## What reviewers say

### 危険物乙種第４類：試験対策アプリ

[App page](https://appshunter.io/ios/app/id6741620317)

**In-app purchases:** none


### 危険物乙4 合格対策

[App page](https://appshunter.io/ios/app/4/id6760637063)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除プレミアム | $2.99 | one-time |


## Frequently asked questions

### Is 危険物乙種第４類：試験対策アプリ free?

危険物乙種第４類：試験対策アプリ is free to download, with no in-app purchases.

### Is 危険物乙4 合格対策 free?

危険物乙4 合格対策 is free to download, with in-app purchases available.

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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.*