# 危険物乙4 合格対策 vs 危険物乙4 過去問・問題集

The clearest difference is in-app purchases: 危険物乙4 過去問・問題集 at none against 危険物乙4 合格対策's 1. 危険物乙4 過去問・問題集 also leads on device support. On price and iOS requirement 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4 過去問・問題集 asks for nothing beyond the download.

## The numbers

| Metric | 危険物乙4 合格対策 | 危険物乙4 過去問・問題集 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Ad-supported |
| Size | 132 MB | 43 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jongmin Kim](https://appshunter.io/developer/1693759760) | [Naoto Baba](https://appshunter.io/developer/1445524034) |

## What reviewers say

### 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 |


### 危険物乙4 過去問・問題集

[App page](https://appshunter.io/ios/app/4/id6766231307)

This app helps you prepare for the Class B, Type 4 hazardous materials handler exam. It offers practice questions, targeted drills, and mock tests to support self-study and efficient learning during your commute or breaks.

**Highlights:** Past exam questions and explanations, Subject-specific practice, Weakness review, Mock exams, Study history visualization, Bookmarks, Dark mode

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

**In-app purchases:** none


## Frequently asked questions

### 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.

### 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.

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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.*