# 危険物乙４類取扱者試験問題集lite　りすさんシリーズ vs おつよん

The clearest difference is ads: 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 おつよん's shown. おつよん's advantage is update cadence (fortnightly vs every 6 weeks) and iOS requirement (14.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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, おつよん fortnightly. The most recent releases landed on August 15, 2026 and September 18, 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 | おつよん |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 6 MB | 26 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [HIROKI HORIGUCHI](https://appshunter.io/developer/1535451720) |

## 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


### おつよん

[App page](https://appshunter.io/ios/app/id6443517450)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 おつよん free?

おつよん is free to download, with no in-app purchases.

### 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 おつよん have ads?

おつよん shows ads; 危険物乙４類取扱者試験問題集lite　りすさんシリーズ does not.

### 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 おつよん?

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 おつよん fortnightly. 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 August 15, 2026 and おつよん on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*