# Merge Pdf vs Compress PDF

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

Both are free to download. Merge Pdf sells 2 in-app purchases, starting at $4.99 per 7 days and Compress PDF sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Merge Pdf ships an update every 2 months, Compress PDF every 3 weeks. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Merge Pdf | Compress PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 11 MB | 33 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Momina Khalid](https://appshunter.io/developer/1895657589) | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) |

## What reviewers say

### Merge Pdf

[App page](https://appshunter.io/ios/app/merge-pdf-split-combine-files/id6770606021)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


### Compress PDF

[App page](https://appshunter.io/ios/app/compress-pdf-pdf-compressor/id6790176607)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $2.99 | per 7 days |
| Premium Month | $7.99 | per month |
| Premium Year | $49.99 | per year |


## Frequently asked questions

### Is Merge Pdf free?

Merge Pdf is free to download, with in-app purchases available.

### Is Compress PDF free?

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

### Do Merge Pdf or Compress PDF have ads?

Compress PDF shows ads; Merge Pdf does not.

### Which is updated more often, Merge Pdf or Compress PDF?

Merge Pdf ships an update every 2 months, and Compress PDF every 3 weeks. Most recently, Merge Pdf was updated on September 26, 2026 and Compress PDF on September 20, 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.*