# Shrink PDF vs PDF Compressor

The clearest difference is ads: PDF Compressor at none against Shrink PDF's shown. PDF Compressor also leads on update cadence (every 3 days vs every 2 weeks). Shrink PDF's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

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

Shrink PDF ships an update every 2 weeks, PDF Compressor every 3 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shrink PDF | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-compressor-size-compress/id6799160505/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 39 MB | 26 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hiroki kawamura](https://appshunter.io/developer/1613885005) | [TechCreative Lab LLC](https://appshunter.io/developer/6799160509) |

## What reviewers say

### 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 |


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-size-compress/id6799160505)

Easily reduce the size of PDF files by up to 90% without sacrificing quality. This tool offers multiple compression levels and batch processing, making it ideal for emailing documents, saving storage, and meeting upload size limits.

**Highlights:** Compress PDFs up to 90%, 6 compression levels, Batch compression, Organize with folders, Secure file processing, Manage and preview files

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $1.99 | per 7 days |
| Month | $6.99 | per month |
| Year | $29.99 | per year |


## Frequently asked questions

### Is Shrink PDF free?

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

### Is PDF Compressor free?

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

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

Shrink PDF shows ads; PDF Compressor does not.

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

Shrink PDF ships an update every 2 weeks, and PDF Compressor every 3 days. Most recently, Shrink PDF was updated on November 6, 2026 and PDF Compressor on October 31, 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.*