# 산업안전OX vs 그링보카

The clearest difference is in-app purchases: 그링보카 at none against 산업안전OX's 3. 산업안전OX's advantage is iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. 산업안전OX sells 3 in-app purchases, starting at $2.99 per month. 그링보카 asks for nothing beyond the download.

## The numbers

| Metric | 산업안전OX | 그링보카 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 35 MB | 32 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHAE HYUCK LEE](https://appshunter.io/developer/1658701307) | [WorkNPLAY Inc.](https://appshunter.io/developer/6810142839) |

## 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 |


### 그링보카

[App page](https://appshunter.io/ios/app/id6776935797)

**In-app purchases:** none


## Frequently asked questions

### Is 산업안전OX free?

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

### Is 그링보카 free?

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

### Do 산업안전OX or 그링보카 have ads?

Neither 산업안전OX nor 그링보카 shows 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.*