# 海联 vs 屏卫PRO

The clearest difference is ads: 屏卫PRO at none against 海联's shown. 屏卫PRO also leads on update cadence (every 4 days vs every 2 months). 海联's advantage is iOS requirement (11.0 vs 17.0). On price, 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.

海联 ships an update every 2 months, 屏卫PRO every 4 days. Both last shipped on October 13, 2026.

## The numbers

| Metric | 海联 | 屏卫PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 94 MB | 10 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Unovo Intelligence Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1124001817) | [Shenzhen Zhengyilong Technology Co.,Ltd](https://appshunter.io/developer/932771087) |

## What reviewers say

### 海联

[App page](https://appshunter.io/ios/app/id1480213477)

**Features:** macOS Compatibility

**In-app purchases:** none


### 屏卫PRO

[App page](https://appshunter.io/ios/app/pro/id6812643787)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 海联 free?

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

### Is 屏卫PRO free?

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

### Do 海联 or 屏卫PRO have ads?

海联 shows ads; 屏卫PRO does not.

### Which is updated more often, 海联 or 屏卫PRO?

海联 ships an update every 2 months, and 屏卫PRO every 4 days. Most recently, 海联 was updated on October 13, 2026 and 屏卫PRO on October 13, 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.*