# 海川云 vs PM研发实验室项目流程管理

The clearest difference is update cadence: PM研发实验室项目流程管理 at monthly against 海川云's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

海川云 ships an update every 3 months, PM研发实验室项目流程管理 monthly. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 海川云 | PM研发实验室项目流程管理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 159 MB | 15 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Changsha Haichuan Automation Co., Ltd.](https://appshunter.io/developer/1146351939) | [NeoTrident Technology Ltd](https://appshunter.io/developer/940375066) |

## What reviewers say

### 海川云

[App page](https://appshunter.io/ios/app/id1146351940)

**In-app purchases:** none


### PM研发实验室项目流程管理

[App page](https://appshunter.io/ios/app/pm/id1514720241)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 海川云 free?

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

### Is PM研发实验室项目流程管理 free?

PM研发实验室项目流程管理 is free to download, with no in-app purchases.

### Do 海川云 or PM研发实验室项目流程管理 have ads?

Neither 海川云 nor PM研发实验室项目流程管理 shows ads.

### Which is updated more often, 海川云 or PM研发实验室项目流程管理?

海川云 ships an update every 3 months, and PM研发实验室项目流程管理 monthly. Most recently, 海川云 was updated on September 24, 2026 and PM研发实验室项目流程管理 on September 20, 2026.

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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.*