# 危険物乙4 合格対策 vs 危険物乙4 合格ドリル

The clearest difference is in-app purchases: 危険物乙4 合格ドリル at none against 危険物乙4 合格対策's 1. 危険物乙4 合格ドリル also leads on device support. 危険物乙4 合格対策's advantage is iOS requirement (13.0 vs 15.1). 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4 合格ドリル asks for nothing beyond the download.

## The numbers

| Metric | 危険物乙4 合格対策 | 危険物乙4 合格ドリル |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 132 MB | 53 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jongmin Kim](https://appshunter.io/developer/1693759760) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## 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 合格ドリル

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

**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 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.

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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.*