# 危険物乙4 過去問・問題集 vs 危険物取扱者【乙種4類】予想問題演習帳

The clearest difference is iOS requirement: 危険物乙4 過去問・問題集 at 13.0 against 危険物取扱者【乙種4類】予想問題演習帳's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 危険物乙4 過去問・問題集 | 危険物取扱者【乙種4類】予想問題演習帳 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Ad-supported | — |
| Size | 43 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naoto Baba](https://appshunter.io/developer/1445524034) | [TAKENORI KIMURA](https://appshunter.io/developer/6805303253) |

## What reviewers say

### 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


### 危険物取扱者【乙種4類】予想問題演習帳

[App page](https://appshunter.io/ios/app/4/id6812129233)

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

**In-app purchases:** none


## 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【乙種4類】予想問題演習帳 free?

危険物取扱者【乙種4類】予想問題演習帳 is free to download, with no in-app purchases.

### Do 危険物乙4 過去問・問題集 or 危険物取扱者【乙種4類】予想問題演習帳 have ads?

Both 危険物乙4 過去問・問題集 and 危険物取扱者【乙種4類】予想問題演習帳 show ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*