# PDF Compressor vs PDF Size Reducer

The clearest difference is in-app purchases: PDF Compressor at none against PDF Size Reducer's 2. PDF Compressor also leads on iOS requirement (15.0 vs 17.0). PDF Size Reducer'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. PDF Size Reducer sells 2 in-app purchases, starting at $9.99 per 7 days. PDF Compressor asks for nothing beyond the download.

PDF Compressor ships an update every 8 days, PDF Size Reducer every 3 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PDF Compressor | PDF Size Reducer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 3 days** |
| Size | 5 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAREQ ALHUSAINI](https://appshunter.io/developer/1259393688) | [Asil Arslan](https://appshunter.io/developer/1495845191) |

## 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


### PDF Size Reducer

[App page](https://appshunter.io/ios/app/pdf-size-reducer-shrink-pdf/id6816163572)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $9.99 | per 7 days |
| Yearly Plan | $49.99 | per year |


## Frequently asked questions

### Is PDF Compressor free?

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

### Is PDF Size Reducer free?

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

### Do PDF Compressor or PDF Size Reducer have ads?

PDF Compressor shows ads; PDF Size Reducer does not.

### Which is updated more often, PDF Compressor or PDF Size Reducer?

PDF Compressor ships an update every 8 days, and PDF Size Reducer every 3 days. Most recently, PDF Compressor was updated on October 31, 2026 and PDF Size Reducer 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.*