# PDF Compressor vs Compress PDF

The clearest difference is update cadence: Compress PDF at every 4 days against PDF Compressor's every 8 days. PDF Compressor's advantage is iOS requirement (15.0 vs 18.0). 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.

PDF Compressor ships an update every 8 days, Compress PDF every 4 days. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Compress PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 5 MB | 14 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAREQ ALHUSAINI](https://appshunter.io/developer/1259393688) | [Bokeria](https://appshunter.io/developer/1425332310) |

## What reviewers say

### PDF Compressor

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

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

**In-app purchases:** none


### Compress PDF

[App page](https://appshunter.io/ios/app/compress-pdf-shrink-file/id6815961848)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Compress PDF free?

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

### Do PDF Compressor or Compress PDF have ads?

Both PDF Compressor and Compress PDF show ads.

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

PDF Compressor ships an update every 8 days, and Compress PDF every 4 days. Most recently, PDF Compressor was updated on October 17, 2026 and Compress PDF on October 15, 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.*