# 危険物乙1類取扱者試験問題集　りすさんシリーズ vs 公害防止管理者水質2種対策

The clearest difference is iOS requirement: 公害防止管理者水質2種対策 at 15.1 against 危険物乙1類取扱者試験問題集　りすさんシリーズ's 18.6. On update cadence, ads, in-app purchases and device support there is nothing between them.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 危険物乙1類取扱者試験問題集　りすさんシリーズ | 公害防止管理者水質2種対策 |
| --- | --- | --- |
| Price | **$2.99** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Size | 6 MB | 34 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### 危険物乙1類取扱者試験問題集　りすさんシリーズ

[App page](https://appshunter.io/ios/app/1/id906597634)

This app provides practice questions and study materials for the hazardous materials handling exam. It offers subject-specific study, a test mode, progress tracking, and a glossary. The paid version is ad-free and does not require an internet connection.

**Highlights:** Subject-specific study modules, Practice questions with explanations, Full exam simulation mode, Progress tracking and statistics, Glossary of terms, Textbook feature

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

**In-app purchases:** none


### 公害防止管理者水質2種対策

[App page](https://appshunter.io/ios/app/2/id6775329665)

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

**In-app purchases:** none


## Frequently asked questions

### Is 危険物乙1類取扱者試験問題集　りすさんシリーズ free?

危険物乙1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 公害防止管理者水質2種対策 free?

Pricing for 公害防止管理者水質2種対策 is not currently listed on the App Store.

### Do 危険物乙1類取扱者試験問題集　りすさんシリーズ or 公害防止管理者水質2種対策 have ads?

Neither 危険物乙1類取扱者試験問題集　りすさんシリーズ nor 公害防止管理者水質2種対策 shows ads.

### Which is updated more often, 危険物乙1類取扱者試験問題集　りすさんシリーズ or 公害防止管理者水質2種対策?

危険物乙1類取扱者試験問題集　りすさんシリーズ ships an update every 2 months, and 公害防止管理者水質2種対策 every 2 months. Most recently, 危険物乙1類取扱者試験問題集　りすさんシリーズ was updated on October 8, 2026 and 公害防止管理者水質2種対策 on October 13, 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.*