# 第二種冷凍機械責任者 | 2026年対策問題 vs 第三種電気主任技術者 一問一答

The clearest difference is price: 第三種電気主任技術者 一問一答 at Free against 第二種冷凍機械責任者 | 2026年対策問題's $2.99. 第三種電気主任技術者 一問一答 also leads on iOS requirement (13.0 vs 17.0). 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) and ads (none vs shown). On device support there is nothing between them.

第三種電気主任技術者 一問一答 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. 第三種電気主任技術者 一問一答 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.

## The numbers

| Metric | 第二種冷凍機械責任者 | 2026年対策問題 | 第三種電気主任技術者 一問一答 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Paid | — |
| Size | 6 MB | 287 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) | [LIBERE CO., LTD.](https://appshunter.io/developer/1885109028) |

## 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


### 第三種電気主任技術者 一問一答

[App page](https://appshunter.io/ios/app/id6788264362)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $0.99 | 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 第三種電気主任技術者 一問一答 free?

第三種電気主任技術者 一問一答 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 第三種電気主任技術者 一問一答 have ads?

第三種電気主任技術者 一問一答 shows ads; 第二種冷凍機械責任者 | 2026年対策問題 does not.

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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.*