# 전기자격증 기출문제 vs 용접기능사

The clearest difference is in-app purchases: 전기자격증 기출문제 at none against 용접기능사's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 용접기능사 sells 2 one-off in-app purchases. 전기자격증 기출문제 asks for nothing beyond the download.

전기자격증 기출문제 ships an update every 5 months, 용접기능사 every 3 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 전기자격증 기출문제 | 용접기능사 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Size | 103 MB | 139 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trutory Co., Ltd.](https://appshunter.io/developer/515679860) | [Jongmin Kim](https://appshunter.io/developer/1693759760) |

## What reviewers say

### 전기자격증 기출문제

[App page](https://appshunter.io/ios/app/id6470773473)

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

**In-app purchases:** none


### 용접기능사

[App page](https://appshunter.io/ios/app/id6736568405)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $4.99 | one-time |
| 후원 하기 | $5.99 | one-time |


## Frequently asked questions

### Is 전기자격증 기출문제 free?

전기자격증 기출문제 is free to download, with no in-app purchases.

### Is 용접기능사 free?

용접기능사 is free to download, with in-app purchases available.

### Do 전기자격증 기출문제 or 용접기능사 have ads?

Both 전기자격증 기출문제 and 용접기능사 show ads.

### Which is updated more often, 전기자격증 기출문제 or 용접기능사?

전기자격증 기출문제 ships an update every 5 months, and 용접기능사 every 3 months. Most recently, 전기자격증 기출문제 was updated on October 4, 2026 and 용접기능사 on October 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.*