# 第二種冷凍機械責任者 | 2026年対策問題 vs 甲種危険物取扱者 一問一答問題集

The clearest difference is price: 甲種危険物取扱者 一問一答問題集 at Free against 第二種冷凍機械責任者 | 2026年対策問題's $2.99. 甲種危険物取扱者 一問一答問題集 also leads on update cadence (every 4 days vs every 3 weeks). 第二種冷凍機械責任者 | 2026年対策問題's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

甲種危険物取扱者 一問一答問題集 is free to download; 第二種冷凍機械責任者 | 2026年対策問題 costs $2.99 up front. 甲種危険物取扱者 一問一答問題集 sells 1 one-off in-app purchase. 第二種冷凍機械責任者 | 2026年対策問題 asks for nothing beyond the download.

第二種冷凍機械責任者 | 2026年対策問題 ships an update every 3 weeks, 甲種危険物取扱者 一問一答問題集 every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | 第二種冷凍機械責任者 | 2026年対策問題 | 甲種危険物取扱者 一問一答問題集 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Paid | — |
| Size | 6 MB | 10 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) | [Particles and Waves](https://appshunter.io/developer/1812653811) |

## What reviewers say

### 第二種冷凍機械責任者 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6777672583)

This app offers 800 original practice questions for the Type 2 Refrigeration Engineer exam. It organizes content by topic, provides detailed explanations for correct and incorrect answers, and supports offline use. The app aims to help users understand concepts rather than just memorize them.

**Highlights:** 800 original practice questions, Detailed explanations for answers, Topic-based learning, Randomized question order, Review incorrect answers, Offline access

**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 第二種冷凍機械責任者 | 2026年対策問題 free?

第二種冷凍機械責任者 | 2026年対策問題 costs $2.99, 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 第二種冷凍機械責任者 | 2026年対策問題 or 甲種危険物取扱者 一問一答問題集 have ads?

Neither 第二種冷凍機械責任者 | 2026年対策問題 nor 甲種危険物取扱者 一問一答問題集 shows ads.

### Which is updated more often, 第二種冷凍機械責任者 | 2026年対策問題 or 甲種危険物取扱者 一問一答問題集?

第二種冷凍機械責任者 | 2026年対策問題 ships an update every 3 weeks, and 甲種危険物取扱者 一問一答問題集 every 4 days. Most recently, 第二種冷凍機械責任者 | 2026年対策問題 was updated on October 25, 2026 and 甲種危険物取扱者 一問一答問題集 on October 25, 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.*