# 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 vs 高圧ガス乙種機械 試験対策｜問題集

The clearest difference is price: 高圧ガス乙種機械 試験対策｜問題集 at $2.99 against 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」's $9.99. 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」's advantage is iOS requirement (11.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 costs $9.99 and 高圧ガス乙種機械 試験対策｜問題集 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 | 高圧ガス乙種機械 試験対策｜問題集 |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Monetization | Paid | — |
| Size | 22 MB | 6 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ReCorrect Inc.](https://appshunter.io/developer/1141646408) | [RYOHEI HORIUCHI](https://appshunter.io/developer/1869799988) |

## What reviewers say

### 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」

[App page](https://appshunter.io/ios/app/4430/id1439527297)

This app helps users prepare for the Class B, Type 4 hazardous materials handler exam. It offers a structured learning schedule, randomized mock exams, and targeted practice for weak subjects, aiming for efficient study and a high chance of passing.

**Highlights:** Structured learning schedule, Randomized mock exams, Targeted practice for weak subjects, Analysis of past questions, Study plan for efficient learning

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

**In-app purchases:** none


### 高圧ガス乙種機械 試験対策｜問題集

[App page](https://appshunter.io/ios/app/id6775465751)

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

**In-app purchases:** none


## Frequently asked questions

### Is 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 free?

危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 costs $9.99, with no in-app purchases.

### Is 高圧ガス乙種機械 試験対策｜問題集 free?

高圧ガス乙種機械 試験対策｜問題集 costs $2.99, with no in-app purchases.

### Do 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 or 高圧ガス乙種機械 試験対策｜問題集 have ads?

Neither 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 nor 高圧ガス乙種機械 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.*