# 危険物乙4 合格ドリル vs 危険物取扱者【乙種4類】予想問題演習帳

危険物乙4 合格ドリル and 危険物取扱者【乙種4類】予想問題演習帳 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 合格ドリル | 危険物取扱者【乙種4類】予想問題演習帳 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Size | 53 MB | 6 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [TAKENORI KIMURA](https://appshunter.io/developer/6805303253) |

## What reviewers say

### 危険物乙4 合格ドリル

[App page](https://appshunter.io/ios/app/4/id6761160536)

**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 合格ドリル free?

危険物乙4 合格ドリル 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 合格ドリル 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 合格ドリル 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.*