# 危険物乙3類取扱者試験問題集　りすさんシリーズ vs 2級ボイラーの森

The clearest difference is price: 2級ボイラーの森 at Free against 危険物乙3類取扱者試験問題集　りすさんシリーズ's $2.99. 2級ボイラーの森 also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.6 vs 18.6). 危険物乙3類取扱者試験問題集　りすさんシリーズ's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

2級ボイラーの森 is free to download; 危険物乙3類取扱者試験問題集　りすさんシリーズ costs $2.99 up front. 2級ボイラーの森 sells 1 one-off in-app purchase. 危険物乙3類取扱者試験問題集　りすさんシリーズ asks for nothing beyond the download.

危険物乙3類取扱者試験問題集　りすさんシリーズ ships an update every 2 months, 2級ボイラーの森 every 3 weeks. The most recent releases landed on August 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 危険物乙3類取扱者試験問題集　りすさんシリーズ | 2級ボイラーの森 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 6 MB | 99 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [合同会社OLA](https://appshunter.io/developer/1832165711) |

## What reviewers say

### 危険物乙3類取扱者試験問題集　りすさんシリーズ

[App page](https://appshunter.io/ios/app/3/id906600313)

This app provides practice questions and study materials for the hazardous materials handler exam. It features subject-specific quizzes, a glossary, and a textbook function to aid in preparation.

**Highlights:** Subject-specific practice questions, Full exam simulation mode, Automatic error tracking, Progress tracking bar, Glossary of terms, Textbook function

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

**In-app purchases:** none


### 2級ボイラーの森

[App page](https://appshunter.io/ios/app/2/id6747311296)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| すべての年度がアンロックされます | $2.99 | one-time |


## Frequently asked questions

### Is 危険物乙3類取扱者試験問題集　りすさんシリーズ free?

危険物乙3類取扱者試験問題集　りすさんシリーズ costs $2.99, with no in-app purchases.

### Is 2級ボイラーの森 free?

2級ボイラーの森 is free to download, with in-app purchases available.

### Do 危険物乙3類取扱者試験問題集　りすさんシリーズ or 2級ボイラーの森 have ads?

Neither 危険物乙3類取扱者試験問題集　りすさんシリーズ nor 2級ボイラーの森 shows ads.

### Which is updated more often, 危険物乙3類取扱者試験問題集　りすさんシリーズ or 2級ボイラーの森?

危険物乙3類取扱者試験問題集　りすさんシリーズ ships an update every 2 months, and 2級ボイラーの森 every 3 weeks. Most recently, 危険物乙3類取扱者試験問題集　りすさんシリーズ was updated on August 11, 2026 and 2級ボイラーの森 on September 12, 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.*