# 消防設備士4類ドリル − 製図・鑑別対策 vs 甲種危険物取扱者 一問一答問題集

The clearest difference is in-app purchases: 消防設備士4類ドリル − 製図・鑑別対策 at none against 甲種危険物取扱者 一問一答問題集's 1. 消防設備士4類ドリル − 製図・鑑別対策 also leads on device support (3 vs 1). 甲種危険物取扱者 一問一答問題集's advantage is update cadence (every 5 days vs fortnightly). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 甲種危険物取扱者 一問一答問題集 sells 1 one-off in-app purchase. 消防設備士4類ドリル − 製図・鑑別対策 asks for nothing beyond the download.

消防設備士4類ドリル − 製図・鑑別対策 ships an update fortnightly, 甲種危険物取扱者 一問一答問題集 every 5 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | 消防設備士4類ドリル − 製図・鑑別対策 | 甲種危険物取扱者 一問一答問題集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 23 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Moeki Kozawa](https://appshunter.io/developer/1770452138) | [Particles and Waves](https://appshunter.io/developer/1812653811) |

## What reviewers say

### 消防設備士4類ドリル − 製図・鑑別対策

[App page](https://appshunter.io/ios/app/4/id6796460303)

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

**In-app purchases:** none


### 甲種危険物取扱者 一問一答問題集

[App page](https://appshunter.io/ios/app/id6801183669)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is 消防設備士4類ドリル − 製図・鑑別対策 free?

消防設備士4類ドリル − 製図・鑑別対策 is free to download, with no in-app purchases.

### Is 甲種危険物取扱者 一問一答問題集 free?

甲種危険物取扱者 一問一答問題集 is free to download, with in-app purchases available.

### Do 消防設備士4類ドリル − 製図・鑑別対策 or 甲種危険物取扱者 一問一答問題集 have ads?

Neither 消防設備士4類ドリル − 製図・鑑別対策 nor 甲種危険物取扱者 一問一答問題集 shows ads.

### Which is updated more often, 消防設備士4類ドリル − 製図・鑑別対策 or 甲種危険物取扱者 一問一答問題集?

消防設備士4類ドリル − 製図・鑑別対策 ships an update fortnightly, and 甲種危険物取扱者 一問一答問題集 every 5 days. Most recently, 消防設備士4類ドリル − 製図・鑑別対策 was updated on October 9, 2026 and 甲種危険物取扱者 一問一答問題集 on October 9, 2026.

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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.*