# PDF Compressor vs Compress PDF

The clearest difference is ads: PDF Compressor at none against Compress PDF's shown. PDF Compressor also leads on update cadence (every 5 days vs every 3 weeks). Compress PDF's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Compressor sells 3 in-app purchases, starting at $2.99 per month and Compress PDF sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Compressor ships an update every 5 days, Compress PDF every 3 weeks. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Compress PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 4 MB | 33 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [嘉莉 梁](https://appshunter.io/developer/1873213022) | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-sign-and-merge/id6769762323)

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $12.99 | per year |
| PDF Lifetime | $19.99 | one-time |


### Compress PDF

[App page](https://appshunter.io/ios/app/compress-pdf-pdf-compressor/id6790176607)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $2.99 | per 7 days |
| Premium Month | $7.99 | per month |
| Premium Year | $49.99 | per year |


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Compress PDF free?

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

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

Compress PDF shows ads; PDF Compressor does not.

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

PDF Compressor ships an update every 5 days, and Compress PDF every 3 weeks. Most recently, PDF Compressor was updated on October 31, 2026 and Compress PDF on November 10, 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.*