# PeekMD vs PDF Compressor

The clearest difference is in-app purchases: PDF Compressor at none against PeekMD's 3. PDF Compressor also leads on iOS requirement (15.0 vs 26.0). PeekMD's advantage is ads (none vs shown) and update cadence (every 3 days vs every 8 days). On price and device support there is nothing between them.

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

PeekMD ships an update every 3 days, PDF Compressor every 8 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | PeekMD | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 8 days |
| Size | 3 MB | 5 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [金苹 卢](https://appshunter.io/developer/1885537846) | [TAREQ ALHUSAINI](https://appshunter.io/developer/1259393688) |

## What reviewers say

### 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 |


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-reduce-pdf/id6809077494)

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

**In-app purchases:** none


## Frequently asked questions

### Is PeekMD free?

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

### Is PDF Compressor free?

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

### Do PeekMD or PDF Compressor have ads?

PDF Compressor shows ads; PeekMD does not.

### Which is updated more often, PeekMD or PDF Compressor?

PeekMD ships an update every 3 days, and PDF Compressor every 8 days. Most recently, PeekMD was updated on October 10, 2026 and PDF Compressor on October 1, 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.*