# PDF Compressor vs Smart PDF Compressor

The clearest difference is in-app purchases: Smart PDF Compressor at none against PDF Compressor's 2. Smart PDF Compressor also leads on update cadence (every 9 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Compressor sells 2 in-app purchases, starting at $2.99 per 7 days. Smart PDF Compressor asks for nothing beyond the download.

PDF Compressor ships an update every 3 months, Smart PDF Compressor every 9 days. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Smart PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 2 MB | 1 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Vikram Singh](https://appshunter.io/developer/1800895019) | [Quan Dang](https://appshunter.io/developer/1868401962) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-compresso/id6755685415)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CrushPDF Premium Weekly | $2.99 | per 7 days |
| CrushPDF Premium Annual | $19.99 | per year |


### Smart PDF Compressor

[App page](https://appshunter.io/ios/app/smart-pdf-compressor-reduce/id6757997785)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Smart PDF Compressor free?

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

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

Neither PDF Compressor nor Smart PDF Compressor shows ads.

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

PDF Compressor ships an update every 3 months, and Smart PDF Compressor every 9 days. Most recently, PDF Compressor was updated on October 4, 2026 and Smart PDF Compressor on October 2, 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.*