# PowerPMS vs 工程通

The clearest difference is update cadence: PowerPMS at every 3 weeks against 工程通's every 3 months. PowerPMS also leads on iOS requirement (8.0 vs 15.0). 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.

PowerPMS ships an update every 3 weeks, 工程通 every 3 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PowerPMS | 工程通 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 167 MB | 140 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Shanghai Power Science&Technology Co., Ltd.](https://appshunter.io/developer/1463907329) | [奇鱼时代网络技术(北京)有限公司](https://appshunter.io/developer/1450908662) |

## What reviewers say

### PowerPMS

[App page](https://appshunter.io/ios/app/powerpms/id1004821776)

**Features:** macOS Compatibility

**In-app purchases:** none


### 工程通

[App page](https://appshunter.io/ios/app/id1450908663)

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerPMS free?

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

### Is 工程通 free?

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

### Do PowerPMS or 工程通 have ads?

Neither PowerPMS nor 工程通 shows ads.

### Which is updated more often, PowerPMS or 工程通?

PowerPMS ships an update every 3 weeks, and 工程通 every 3 months. Most recently, PowerPMS was updated on October 26, 2026 and 工程通 on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*