# 大気関係第１種 vs 第三種冷凍機械責任者 | 2026年対策問題

The clearest difference is price: 大気関係第１種 at Free against 第三種冷凍機械責任者 | 2026年対策問題's $1.99. 第三種冷凍機械責任者 | 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.

大気関係第１種 is free to download; 第三種冷凍機械責任者 | 2026年対策問題 costs $1.99 up front. 大気関係第１種 sells 1 one-off in-app purchase. 第三種冷凍機械責任者 | 2026年対策問題 asks for nothing beyond the download.

## The numbers

| Metric | 大気関係第１種 | 第三種冷凍機械責任者 | 2026年対策問題 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 5 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### 大気関係第１種

[App page](https://appshunter.io/ios/app/id6758415098)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 大気関係第１種公害防止管理者 試験対策 | $1.99 | one-time |


### 第三種冷凍機械責任者 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6774375685)

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

**In-app purchases:** none


## Frequently asked questions

### Is 大気関係第１種 free?

大気関係第１種 is free to download, with in-app purchases available.

### Is 第三種冷凍機械責任者 | 2026年対策問題 free?

第三種冷凍機械責任者 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Do 大気関係第１種 or 第三種冷凍機械責任者 | 2026年対策問題 have ads?

Neither 大気関係第１種 nor 第三種冷凍機械責任者 | 2026年対策問題 shows ads.

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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.*