# 산업안전OX vs 산업안전기사

산업안전OX and 산업안전기사 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 산업안전OX sells 3 in-app purchases, starting at $2.99 per month and 산업안전기사 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 산업안전OX | 산업안전기사 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHAE HYUCK LEE](https://appshunter.io/developer/1658701307) | [Qingdao Tomato Creative Technology Service Co., Ltd](https://appshunter.io/developer/1760477498) |

## What reviewers say

### 산업안전OX

[App page](https://appshunter.io/ios/app/ox/id6738162182)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 무제한 해설권 | $2.99 | per month |
| 단원 설정권 | $2.99 | per month |
| 평생 자유 이용권 | $19.99 | one-time |


### 산업안전기사

[App page](https://appshunter.io/ios/app/cbt/id6741500736)

This app provides extensive past exam questions and detailed explanations to help users prepare for the Industrial Safety Engineer certification. It features intelligent error management, personalized favorites, and offline access for flexible learning. All core learning materials are available for free.

**Highlights:** 10 years of past exam questions, Scientific problem-solving by type, Detailed problem explanations, Intelligent incorrect answer management, Personalized favorites feature, Offline learning support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $3.99 | one-time |


## Frequently asked questions

### Is 산업안전OX free?

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

### Is 산업안전기사 free?

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

### Do 산업안전OX or 산업안전기사 have ads?

Both 산업안전OX and 산업안전기사 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.*