# 冷凍三種の森 vs 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集

The clearest difference is price: 冷凍三種の森 at Free against 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集's $2.99. 冷凍三種の森 also leads on iOS requirement (13.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

冷凍三種の森 is free to download; 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 冷凍三種の森 | 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | — | Paid |
| Size | 100 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [合同会社OLA](https://appshunter.io/developer/1832165711) | [RYOHEI HORIUCHI](https://appshunter.io/developer/1869799988) |

## What reviewers say

### 冷凍三種の森

[App page](https://appshunter.io/ios/app/id6746394545)

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

**In-app purchases:** none


### 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集

[App page](https://appshunter.io/ios/app/id6780144544)

This app offers a comprehensive practice question set for the Class B Chemical High-Pressure Gas Manufacturing Safety Engineer exam. It covers all three subjects with 400 multiple-choice questions organized by difficulty, featuring review and mock test modes to help users identify and strengthen weak areas.

**Highlights:** 400 multiple-choice questions, Detailed explanations for each question, Review mode for incorrect answers, Mock test simulation, Randomized question order, Proficiency map for weak areas

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

**In-app purchases:** none


## Frequently asked questions

### Is 冷凍三種の森 free?

冷凍三種の森 is free to download, with no in-app purchases.

### Is 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 free?

高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 costs $2.99, with no in-app purchases.

### Do 冷凍三種の森 or 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 have ads?

Neither 冷凍三種の森 nor 高圧ガス製造保安責任者 乙種化学 試験対策｜問題集 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.*