# 泗阳出行 vs PeekMD

The clearest difference is in-app purchases: 泗阳出行 at none against PeekMD's 3. 泗阳出行 also leads on iOS requirement (11.1 vs 26.0). PeekMD's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. PeekMD sells 3 one-off in-app purchases. 泗阳出行 asks for nothing beyond the download.

泗阳出行 ships an update every 3 weeks, PeekMD every 3 days. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 泗阳出行 | PeekMD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 48 MB | 3 MB |
| Requires iOS | **11.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Zhengzhou Tiamaes Technology Co., Ltd](https://appshunter.io/developer/1516763493) | [金苹 卢](https://appshunter.io/developer/1885537846) |

## What reviewers say

### 泗阳出行

[App page](https://appshunter.io/ios/app/id1456225475)

**Features:** macOS Compatibility

**In-app purchases:** none


### PeekMD

[App page](https://appshunter.io/ios/app/peekmd-markdown-html-viewer/id6775353195)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10次转换次数 | $0.99 | one-time |
| PeekMD PRO | $1.99 | one-time |
| 50次转换次数 | $2.99 | one-time |


## Frequently asked questions

### Is 泗阳出行 free?

泗阳出行 is free to download, with no in-app purchases.

### Is PeekMD free?

PeekMD is free to download, with in-app purchases available.

### Do 泗阳出行 or PeekMD have ads?

Neither 泗阳出行 nor PeekMD shows ads.

### Which is updated more often, 泗阳出行 or PeekMD?

泗阳出行 ships an update every 3 weeks, and PeekMD every 3 days. Most recently, 泗阳出行 was updated on October 26, 2026 and PeekMD on October 31, 2026.

---

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