# 消防設備士4類 試験対策｜問題集 vs 電験三種 過去問｜理論 電力 機械 法規

The clearest difference is price: 電験三種 過去問｜理論 電力 機械 法規 at Free against 消防設備士4類 試験対策｜問題集's $2.99. 電験三種 過去問｜理論 電力 機械 法規 also leads on update cadence (every 9 days vs every 3 weeks). 消防設備士4類 試験対策｜問題集's advantage is in-app purchases (none vs 1). On iOS requirement there is nothing between them.

電験三種 過去問｜理論 電力 機械 法規 is free to download; 消防設備士4類 試験対策｜問題集 costs $2.99 up front. 電験三種 過去問｜理論 電力 機械 法規 sells 1 one-off in-app purchase. 消防設備士4類 試験対策｜問題集 asks for nothing beyond the download.

消防設備士4類 試験対策｜問題集 ships an update every 3 weeks, 電験三種 過去問｜理論 電力 機械 法規 every 9 days. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 消防設備士4類 試験対策｜問題集 | 電験三種 過去問｜理論 電力 機械 法規 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4/id6763487725/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Paid | — |
| Size | 5 MB | 183 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [RYOHEI HORIUCHI](https://appshunter.io/developer/1869799988) | [StackWorks LLC](https://appshunter.io/developer/1833776593) |

## What reviewers say

### 消防設備士4類 試験対策｜問題集

[App page](https://appshunter.io/ios/app/4/id6763487725)

This app provides comprehensive study materials for the Fire Equipment Engineer Type 4 exam, covering both Type A and Type B certifications. It features structured lessons, practice questions, and mock exams to help users efficiently prepare and improve their understanding of fire safety equipment.

**Highlights:** Covers Type A and Type B exams, Includes electrical basics and regulations, 4-choice practice questions, Review function for weak areas, Mock exam mode, Study during short breaks

**In-app purchases:** none


### 電験三種 過去問｜理論 電力 機械 法規

[App page](https://appshunter.io/ios/app/id6799666772)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 合格パック | $9.99 | one-time |


## Frequently asked questions

### Is 消防設備士4類 試験対策｜問題集 free?

消防設備士4類 試験対策｜問題集 costs $2.99, with no in-app purchases.

### Is 電験三種 過去問｜理論 電力 機械 法規 free?

電験三種 過去問｜理論 電力 機械 法規 is free to download, with in-app purchases available.

### Which is updated more often, 消防設備士4類 試験対策｜問題集 or 電験三種 過去問｜理論 電力 機械 法規?

消防設備士4類 試験対策｜問題集 ships an update every 3 weeks, and 電験三種 過去問｜理論 電力 機械 法規 every 9 days. Most recently, 消防設備士4類 試験対策｜問題集 was updated on October 6, 2026 and 電験三種 過去問｜理論 電力 機械 法規 on October 5, 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.*