# 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 環境法令検定対策

The clearest difference is update cadence: 環境法令検定対策 at fortnightly 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 every 11 months. 環境法令検定対策 also leads on price ($4.99 vs $9.99). On ads, in-app purchases, device support and iOS requirement 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 環境法令検定対策 $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 ships an update every 11 months, 環境法令検定対策 fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## 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」 | 環境法令検定対策 |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 14 MB | 34 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ReCorrect Inc.](https://appshunter.io/developer/1141646408) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## 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


### 環境法令検定対策

[App page](https://appshunter.io/ios/app/id6769649366)

**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 環境法令検定対策 free?

環境法令検定対策 costs $4.99, 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 環境法令検定対策 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 環境法令検定対策 shows ads.

### Which is updated more often, 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 環境法令検定対策?

危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 ships an update every 11 months, and 環境法令検定対策 fortnightly. Most recently, 危険物取扱者試験 乙種第4類(乙4)「30日合格プログラム」 was updated on November 2, 2026 and 環境法令検定対策 on October 31, 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.*