# 危険物乙4 合格対策 vs 危険物乙4・乙種全類 一問一答問題集

The clearest difference is iOS requirement: 危険物乙4 合格対策 at 13.0 against 危険物乙4・乙種全類 一問一答問題集's 16.0. On price and in-app purchases 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 and 危険物乙4・乙種全類 一問一答問題集 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 危険物乙4 合格対策 | 危険物乙4・乙種全類 一問一答問題集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 days |
| Size | 132 MB | 10 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Jongmin Kim](https://appshunter.io/developer/1693759760) | [Particles and Waves](https://appshunter.io/developer/1812653811) |

## 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・乙種全類 一問一答問題集

[App page](https://appshunter.io/ios/app/4/id6801183486)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Full Unlock) | $2.99 | one-time |


## 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・乙種全類 一問一答問題集 free?

危険物乙4・乙種全類 一問一答問題集 is free to download, with in-app purchases available.

---

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