# 掌证通 vs 国泰项目管理系统

掌证通 and 国泰项目管理系统 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 掌证通 | 国泰项目管理系统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | — |
| Size | 28 MB | 84 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Electronic Certificate Authority Center Co.,LTD](https://appshunter.io/developer/924307388) | [北京太格时代电气股份有限公司](https://appshunter.io/developer/1664100148) |

## What reviewers say

### 掌证通

[App page](https://appshunter.io/ios/app/id6450326978)

**Features:** Vision Pro support

**In-app purchases:** none


### 国泰项目管理系统

[App page](https://appshunter.io/ios/app/id6720710418)

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

**In-app purchases:** none


## Frequently asked questions

### Is 掌证通 free?

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

### Is 国泰项目管理系统 free?

国泰项目管理系统 is free to download, with no in-app purchases.

### Do 掌证通 or 国泰项目管理系统 have ads?

Neither 掌证通 nor 国泰项目管理系统 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.*