# 危険物取扱者 乙4 | 2026年対策問題 vs サクッと危険物乙4 1問1答【サクトレ】

The clearest difference is price: サクッと危険物乙4 1問1答【サクトレ】 at Free against 危険物取扱者 乙4 | 2026年対策問題's $1.99. サクッと危険物乙4 1問1答【サクトレ】 also leads on iOS requirement (12.0 vs 17.0). 危険物取扱者 乙4 | 2026年対策問題's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

サクッと危険物乙4 1問1答【サクトレ】 is free to download; 危険物取扱者 乙4 | 2026年対策問題 costs $1.99 up front. サクッと危険物乙4 1問1答【サクトレ】 sells 1 one-off in-app purchase. 危険物取扱者 乙4 | 2026年対策問題 asks for nothing beyond the download.

## The numbers

| Metric | 危険物取扱者 乙4 | 2026年対策問題 | サクッと危険物乙4 1問1答【サクトレ】 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Paid | — |
| Size | 5 MB | 32 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) | [DECRYPTION, CO., LTD.](https://appshunter.io/developer/1778172529) |

## What reviewers say

### 危険物取扱者 乙4 | 2026年対策問題

[App page](https://appshunter.io/ios/app/4-2026/id6764314779)

This app offers 700 original practice questions for the Class A Hazardous Materials Handler exam. It organizes difficult points by subject, provides detailed explanations for correct and incorrect answers, and supports offline use. Learn and understand the material thoroughly for exam preparation.

**Highlights:** 700 original practice questions, Detailed explanations for answers, Subject-specific learning, Randomized question order, Review of incorrect answers, Offline access

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

**In-app purchases:** none


### サクッと危険物乙4 1問1答【サクトレ】

[App page](https://appshunter.io/ios/app/4-11/id6764759755)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問題アンロック | $1.99 | one-time |


## Frequently asked questions

### Is 危険物取扱者 乙4 | 2026年対策問題 free?

危険物取扱者 乙4 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Is サクッと危険物乙4 1問1答【サクトレ】 free?

サクッと危険物乙4 1問1答【サクトレ】 is free to download, with in-app purchases available.

### Do 危険物取扱者 乙4 | 2026年対策問題 or サクッと危険物乙4 1問1答【サクトレ】 have ads?

Neither 危険物取扱者 乙4 | 2026年対策問題 nor サクッと危険物乙4 1問1答【サクトレ】 shows ads.

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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.*