# 危険物乙4 過去問＆問題集 vs 危険物取扱者

The clearest difference is in-app purchases: 危険物乙4 過去問＆問題集 at none against 危険物取扱者's 1. 危険物乙4 過去問＆問題集 also leads on iOS requirement (13.0 vs 16.0). 危険物取扱者's advantage is device support. On price there is nothing between them.

Both are free to download. 危険物取扱者 sells 1 one-off in-app purchase. 危険物乙4 過去問＆問題集 asks for nothing beyond the download.

## The numbers

| Metric | 危険物乙4 過去問＆問題集 | 危険物取扱者 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Size | 24 MB | 5 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TAKASHI MEGURO](https://appshunter.io/developer/1866895041) | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) |

## What reviewers say

### 危険物乙4 過去問＆問題集

[App page](https://appshunter.io/ios/app/4-2026/id6757431635)

**In-app purchases:** none


### 危険物取扱者

[App page](https://appshunter.io/ios/app/4/id6757994563)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 危険物取扱者（乙4） 試験対策 | $1.99 | one-time |


## Frequently asked questions

### Is 危険物乙4 過去問＆問題集 free?

危険物乙4 過去問＆問題集 is free to download, with no in-app purchases.

### Is 危険物取扱者 free?

危険物取扱者 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.*