# NC PDF Merge vs Compress PDF

The clearest difference is ads: NC PDF Merge at none against Compress PDF's shown. Compress PDF's advantage is iOS requirement (15.0 vs 26.2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. NC PDF Merge sells 1 one-off in-app purchase 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | NC PDF Merge | Compress PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 4 MB | 33 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Martin Neifer](https://appshunter.io/developer/1824974012) | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) |

## What reviewers say

### NC PDF Merge

[App page](https://appshunter.io/ios/app/nc-pdf-merge/id6761257681)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Watermark | $0.99 | one-time |


### 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 NC PDF Merge free?

NC PDF Merge 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 NC PDF Merge or Compress PDF have ads?

Compress PDF shows ads; NC PDF Merge does not.

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

NC PDF Merge ships an update every 3 weeks, and Compress PDF every 3 weeks. Most recently, NC PDF Merge was updated on October 25, 2026 and Compress PDF on October 27, 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.*