# 牡丹会议 vs 工勘助手

The clearest difference is device support: 牡丹会议 at 3 against 工勘助手's —. 工勘助手's advantage is iOS requirement (9.0 vs 15.6). On price and in-app purchases 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 | 牡丹会议 | 工勘助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 149 MB | 37 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [牡丹集团](https://appshunter.io/developer/916416236) | [北京万维盈创科技有限公司](https://appshunter.io/developer/1680456251) |

## What reviewers say

### 牡丹会议

[App page](https://appshunter.io/ios/app/id1645056229)

**Features:** Vision Pro support

**In-app purchases:** none


### 工勘助手

[App page](https://appshunter.io/ios/app/id6450402897)

**In-app purchases:** none


## Frequently asked questions

### Is 牡丹会议 free?

牡丹会议 is free to download, with no in-app purchases.

### Is 工勘助手 free?

工勘助手 is free to download, with no in-app purchases.

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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.*