# 链药内部端 vs 窗小白

The clearest difference is update cadence: 窗小白 at every 3 weeks against 链药内部端's every 4 months. 链药内部端's advantage is iOS requirement (8.0 vs 11.0). 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.

链药内部端 ships an update every 4 months, 窗小白 every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 链药内部端 | 窗小白 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 35 MB | 261 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Chengdu Lianyao Zhongkang Pharmaceutical Science & Technology Co., Ltd.](https://appshunter.io/developer/1762276967) | [Hefei Yingzhou Information Technology Co., Ltd.](https://appshunter.io/developer/1501013683) |

## What reviewers say

### 链药内部端

[App page](https://appshunter.io/ios/app/id1448808707)

**Features:** macOS Compatibility

**In-app purchases:** none


### 窗小白

[App page](https://appshunter.io/ios/app/id6444171179)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 链药内部端 free?

链药内部端 is free to download, with no in-app purchases.

### Is 窗小白 free?

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

### Do 链药内部端 or 窗小白 have ads?

Neither 链药内部端 nor 窗小白 shows ads.

### Which is updated more often, 链药内部端 or 窗小白?

链药内部端 ships an update every 4 months, and 窗小白 every 3 weeks. Most recently, 链药内部端 was updated on November 2, 2026 and 窗小白 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.*