# Offline PDF Merge vs PDF Compressor

The clearest difference is in-app purchases: Offline PDF Merge at none against PDF Compressor's 2. Offline PDF Merge also leads on update cadence (monthly vs every 2 months). PDF Compressor's advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. PDF Compressor sells 2 in-app purchases, starting at $4.99 per 7 days. Offline PDF Merge asks for nothing beyond the download.

Offline PDF Merge ships an update monthly, PDF Compressor every 2 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Offline PDF Merge | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Size | 11 MB | 6 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | +4 | 4+ |
| Developer | [Scriptstash Limited](https://appshunter.io/developer/1844753507) | [Alex Gameli Heyman](https://appshunter.io/developer/1529812783) |

## What reviewers say

### Offline PDF Merge

[App page](https://appshunter.io/ios/app/offline-pdf-merge/id6756957998)

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

**In-app purchases:** none


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-resize-file/id6779411586)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is Offline PDF Merge free?

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

### Is PDF Compressor free?

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

### Do Offline PDF Merge or PDF Compressor have ads?

Offline PDF Merge shows ads; PDF Compressor does not.

### Which is updated more often, Offline PDF Merge or PDF Compressor?

Offline PDF Merge ships an update monthly, and PDF Compressor every 2 months. Most recently, Offline PDF Merge was updated on October 7, 2026 and PDF Compressor on October 9, 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.*