# 消防設備士 乙6 試験対策 vs Denken 電験三種 Exam Prep

The clearest difference is price: Denken 電験三種 Exam Prep at Free against 消防設備士 乙6 試験対策's $4.99. 消防設備士 乙6 試験対策's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

Denken 電験三種 Exam Prep is free to download; 消防設備士 乙6 試験対策 costs $4.99 up front. Denken 電験三種 Exam Prep sells 1 one-off in-app purchase. 消防設備士 乙6 試験対策 asks for nothing beyond the download.

消防設備士 乙6 試験対策 ships an update every 3 weeks, Denken 電験三種 Exam Prep every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 消防設備士 乙6 試験対策 | Denken 電験三種 Exam Prep |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 3 MB | 143 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [matsuo konan](https://appshunter.io/developer/6772919772) | [StackWorks LLC](https://appshunter.io/developer/1833776593) |

## What reviewers say

### 消防設備士 乙6 試験対策

[App page](https://appshunter.io/ios/app/6/id6783586555)

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

**In-app purchases:** none


### Denken 電験三種 Exam Prep

[App page](https://appshunter.io/ios/app/denken-exam-prep/id6799666772)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pass Pack | $9.99 | one-time |


## Frequently asked questions

### Is 消防設備士 乙6 試験対策 free?

消防設備士 乙6 試験対策 costs $4.99, with no in-app purchases.

### Is Denken 電験三種 Exam Prep free?

Denken 電験三種 Exam Prep is free to download, with in-app purchases available.

### Do 消防設備士 乙6 試験対策 or Denken 電験三種 Exam Prep have ads?

Neither 消防設備士 乙6 試験対策 nor Denken 電験三種 Exam Prep shows ads.

### Which is updated more often, 消防設備士 乙6 試験対策 or Denken 電験三種 Exam Prep?

消防設備士 乙6 試験対策 ships an update every 3 weeks, and Denken 電験三種 Exam Prep every 2 weeks. Most recently, 消防設備士 乙6 試験対策 was updated on October 24, 2026 and Denken 電験三種 Exam Prep on October 25, 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.*