# 危険物乙４類取扱者試験問題集lite　りすさんシリーズ vs 乙4

The clearest difference is in-app purchases: 危険物乙４類取扱者試験問題集lite　りすさんシリーズ at none against 乙4's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 乙4 sells 1 in-app purchase, starting at $4.99 per 7 days. 危険物乙４類取扱者試験問題集lite　りすさんシリーズ asks for nothing beyond the download.

危険物乙４類取扱者試験問題集lite　りすさんシリーズ ships an update every 6 weeks, 乙4 monthly. The most recent releases landed on September 22, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 危険物乙４類取扱者試験問題集lite　りすさんシリーズ | 乙4 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 6 MB | 2 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [CapCat LLC](https://appshunter.io/developer/1654095841) |

## What reviewers say

### 危険物乙４類取扱者試験問題集lite　りすさんシリーズ

[App page](https://appshunter.io/ios/app/lite/id903638047)

This app provides practice questions and study materials for the hazardous materials handler exam. It offers科目-specific study, a question bank with detailed explanations, and progress tracking features. The app includes a glossary and textbook function for comprehensive learning.

**Highlights:** 科目別学習, 一問一答形式, 自動記憶・優先出題, 進捗状況バー, 本試験形式モード, 用語集, 教科書機能

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

**In-app purchases:** none


### 乙4

[App page](https://appshunter.io/ios/app/4-4-2026/id6764290217)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無料でお試しする | $4.99 | per 7 days |


## Frequently asked questions

### Is 危険物乙４類取扱者試験問題集lite　りすさんシリーズ free?

危険物乙４類取扱者試験問題集lite　りすさんシリーズ is free to download, with no in-app purchases.

### Is 乙4 free?

乙4 is free to download, with in-app purchases available.

### Do 危険物乙４類取扱者試験問題集lite　りすさんシリーズ or 乙4 have ads?

Neither 危険物乙４類取扱者試験問題集lite　りすさんシリーズ nor 乙4 shows ads.

### Which is updated more often, 危険物乙４類取扱者試験問題集lite　りすさんシリーズ or 乙4?

危険物乙４類取扱者試験問題集lite　りすさんシリーズ ships an update every 6 weeks, and 乙4 monthly. Most recently, 危険物乙４類取扱者試験問題集lite　りすさんシリーズ was updated on September 22, 2026 and 乙4 on October 1, 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.*