# 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 vs 浄化槽設備士 全肢解説問題集

The clearest difference is in-app purchases: 浄化槽設備士 全肢解説問題集 at none against 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 sells 3 one-off in-app purchases. 浄化槽設備士 全肢解説問題集 asks for nothing beyond the download.

電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 ships an update monthly, 浄化槽設備士 全肢解説問題集 every 2 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 | 浄化槽設備士 全肢解説問題集 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1639302836/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 58 MB | 32 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GINOAPPS LLC.](https://appshunter.io/developer/1482621114) | [Takuro Fukuma](https://appshunter.io/developer/1896728656) |

## What reviewers say

### 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策

[App page](https://appshunter.io/ios/app/id1639302836)

This app helps users efficiently study for the Grade 3 Electrical Engineer exam's mechanical subject. It features one-handed operation, optimized question settings, and a review function for difficult problems. Track your progress and estimate completion dates.

**Highlights:** One-handed operation for on-the-go study, Optimized question settings, Tap to search unfamiliar terms, Review difficult problems, Detailed progress tracking, Estimated completion date, Customizable text size and daily goals

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 電動機応用・電熱・照明・電気化学・自動制御・情報 | $2.99 | one-time |
| 回転機全般・変圧器・その他機器・パワーエレクトロニクス | $2.99 | one-time |
| 直流機・誘導機・同期機 | $2.99 | one-time |


### 浄化槽設備士 全肢解説問題集

[App page](https://appshunter.io/ios/app/id6792416708)

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

**In-app purchases:** none


## Frequently asked questions

### Is 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 free?

電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 is free to download, with in-app purchases available.

### Is 浄化槽設備士 全肢解説問題集 free?

浄化槽設備士 全肢解説問題集 is free to download, with no in-app purchases.

### Do 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 or 浄化槽設備士 全肢解説問題集 have ads?

Neither 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 nor 浄化槽設備士 全肢解説問題集 shows ads.

### Which is updated more often, 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 or 浄化槽設備士 全肢解説問題集?

電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 ships an update monthly, and 浄化槽設備士 全肢解説問題集 every 2 weeks. Most recently, 電験三種 機械科目 秒トレ：第三種電気主任技術者 試験対策 was updated on November 3, 2026 and 浄化槽設備士 全肢解説問題集 on November 10, 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.*