# 가스, 위험물 자격증 기출문제 vs 산업안전산업기사

The clearest difference is review sentiment: 가스, 위험물 자격증 기출문제 at 100% against 산업안전산업기사's 0%. 산업안전산업기사's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 가스, 위험물 자격증 기출문제 sells 2 in-app purchases, starting at $0.99 per month and 산업안전산업기사 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 가스, 위험물 자격증 기출문제 | 산업안전산업기사 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 87 MB | 42 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trutory Co., Ltd.](https://appshunter.io/developer/515679860) | [Qingdao Tomato Creative Technology Service Co., Ltd](https://appshunter.io/developer/1760477498) |

## What reviewers say

### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 이용권 - 아이폰 | $0.99 | per month |
| 1개월 이용권 - 아이패드 | $1.99 | per month |


### 산업안전산업기사

[App page](https://appshunter.io/ios/app/cbt/id6742121484)

This app provides 10 years of past exam questions and detailed explanations to help you prepare for the Industrial Safety Engineer certification. It features intelligent error management and personalized favorites to reinforce learning and avoid repeated mistakes.

**Highlights:** 10 years of past exam questions, Scientific problem-solving by type, Detailed explanations for all questions, Intelligent incorrect answer management, Personalized favorites function, Completely free to use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 고급 기능 | $3.99 | one-time |


## Frequently asked questions

### Is 가스, 위험물 자격증 기출문제 free?

가스, 위험물 자격증 기출문제 is free to download, with in-app purchases available.

### Is 산업안전산업기사 free?

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

### Do 가스, 위험물 자격증 기출문제 or 산업안전산업기사 have ads?

Both 가스, 위험물 자격증 기출문제 and 산업안전산업기사 show ads.

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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.*