# PDF Compress vs Shrink PDF

The clearest difference is ads: PDF Compress at none against Shrink PDF's shown. Shrink PDF's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Compress sells 3 in-app purchases, starting at $1.99 per 7 days and Shrink PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Compress ships an update every 3 months, Shrink PDF every 2 weeks. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | PDF Compress | Shrink PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/pdf-compress-size-compressor/id6642679859/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 39 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Oufqir](https://appshunter.io/developer/1750312649) | [hiroki kawamura](https://appshunter.io/developer/1613885005) |

## What reviewers say

### PDF Compress

[App page](https://appshunter.io/ios/app/pdf-compress-size-compressor/id6642679859)

This tool allows you to significantly reduce the size of PDF files, making them easier to share. It offers multiple compression levels and a user-friendly interface for quick and efficient file management. You can also rename and preview files before sharing.

**Highlights:** Compress PDF files to desired size, Multiple compression levels, User-friendly design, Fast and easy-to-use interface, Achieve over 90% compression, Rename PDF files, Preview PDF files

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $1.99 | per 7 days |
| Month | $4.99 | per month |
| Year | $14.99 | per year |


### Shrink PDF

[App page](https://appshunter.io/ios/app/shrink-pdf-compress-pdf-files/id6795783274)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Forever | $17.99 | one-time |


## Frequently asked questions

### Is PDF Compress free?

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

### Is Shrink PDF free?

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

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

Shrink PDF shows ads; PDF Compress does not.

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

PDF Compress ships an update every 3 months, and Shrink PDF every 2 weeks. Most recently, PDF Compress was updated on October 30, 2026 and Shrink PDF on November 8, 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.*