# AI先生　宅地建物取引士 vs 危険物取扱者 乙4 | 2026年対策問題

The clearest difference is price: AI先生　宅地建物取引士 at Free against 危険物取扱者 乙4 | 2026年対策問題's $1.99. 危険物取扱者 乙4 | 2026年対策問題's advantage is device support. On in-app purchases and iOS requirement there is nothing between them.

AI先生　宅地建物取引士 is free to download; 危険物取扱者 乙4 | 2026年対策問題 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AI先生　宅地建物取引士 | 危険物取扱者 乙4 | 2026年対策問題 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Monetization | — | Paid |
| Size | 4 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [reiko hori](https://appshunter.io/developer/1777370692) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### AI先生　宅地建物取引士

[App page](https://appshunter.io/ios/app/ai/id6738239209)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is AI先生　宅地建物取引士 free?

AI先生　宅地建物取引士 is free to download, with no in-app purchases.

### 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.

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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.*