# 型钢大师 vs 瑞翔EHS

The clearest difference is in-app purchases: 瑞翔EHS at none against 型钢大师's 3. 型钢大师's advantage is iOS requirement (9.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. 型钢大师 sells 3 one-off in-app purchases. 瑞翔EHS asks for nothing beyond the download.

## The numbers

| Metric | 型钢大师 | 瑞翔EHS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 117 MB | 61 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [颖达 陈](https://appshunter.io/developer/1058507663) | [Suzhou Wenku Safety Technology Engineering Co., Ltd](https://appshunter.io/developer/1558791524) |

## What reviewers say

### 型钢大师

[App page](https://appshunter.io/ios/app/id1247264708)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 打赏 | $1.99 | one-time |
| 永久购买所有高级功能 | $3.99 | one-time |
| 解锁全版本 | $5.99 | one-time |


### 瑞翔EHS

[App page](https://appshunter.io/ios/app/ehs/id6755665653)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 型钢大师 free?

型钢大师 is free to download, with in-app purchases available.

### Is 瑞翔EHS free?

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

### Do 型钢大师 or 瑞翔EHS have ads?

Neither 型钢大师 nor 瑞翔EHS 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.*