# 동의과학대 2차인증 vs 가스, 위험물 자격증 기출문제

The clearest difference is ads: 동의과학대 2차인증 at none against 가스, 위험물 자격증 기출문제's shown. 동의과학대 2차인증 also leads on iOS requirement (9.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 동의과학대 2차인증 | 가스, 위험물 자격증 기출문제 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 87 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [xidsystem co.ltd](https://appshunter.io/developer/567705281) | [Trutory Co., Ltd.](https://appshunter.io/developer/515679860) |

## What reviewers say

### 동의과학대 2차인증

[App page](https://appshunter.io/ios/app/2/id1582594883)

**Features:** macOS Compatibility

**In-app purchases:** none


### 가스, 위험물 자격증 기출문제

[App page](https://appshunter.io/ios/app/id6633419384)

Prepare for gas and hazardous materials certification exams with practice questions. Study by subject or by exam session, track your progress, and review incorrect answers. Offers a subscription to remove ads and access full explanations.

**Highlights:** Subject-specific and session-based question viewing, Focused study mode for weak subjects, Progress tracking with average and subject scores, Resume unfinished exams, Automatic grading and incorrect answer notes, Bookmark important questions

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

**In-app purchases:** none


## Frequently asked questions

### Is 동의과학대 2차인증 free?

동의과학대 2차인증 is free to download, with no in-app purchases.

### Is 가스, 위험물 자격증 기출문제 free?

가스, 위험물 자격증 기출문제 is free to download, with no in-app purchases.

### Do 동의과학대 2차인증 or 가스, 위험물 자격증 기출문제 have ads?

가스, 위험물 자격증 기출문제 shows ads; 동의과학대 2차인증 does not.

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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.*