# 工程业务平台 vs PH

The clearest difference is iOS requirement: 工程业务平台 at 12.0 against PH's 15.6. On price, update cadence, ads 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.

工程业务平台 ships an update every 3 weeks, PH fortnightly. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 工程业务平台 | PH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 61 MB | 46 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Blueearth Technology Co., Ltd.](https://appshunter.io/developer/1120464603) | [Suzhou zhongchupuhua Electric Technology Co., Ltd](https://appshunter.io/developer/1673675965) |

## What reviewers say

### 工程业务平台

[App page](https://appshunter.io/ios/app/id1564879448)

**Features:** macOS Compatibility

**In-app purchases:** none


### PH

[App page](https://appshunter.io/ios/app/ph-solar/id6445969426)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 工程业务平台 free?

工程业务平台 is free to download, with no in-app purchases.

### Is PH free?

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

### Do 工程业务平台 or PH have ads?

Neither 工程业务平台 nor PH shows ads.

### Which is updated more often, 工程业务平台 or PH?

工程业务平台 ships an update every 3 weeks, and PH fortnightly. Most recently, 工程业务平台 was updated on October 27, 2026 and PH on November 3, 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.*