# Merge all PDFs vs Nullify

The clearest difference is in-app purchases: Merge all PDFs at none against Nullify's 3. Merge all PDFs also leads on iOS requirement (16.6 vs 18.0). Nullify's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Nullify sells 3 in-app purchases, starting at $3.99 per 7 days. Merge all PDFs asks for nothing beyond the download.

## The numbers

| Metric | Merge all PDFs | Nullify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 months |
| Size | 3 MB | 11 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Riadh Daoued](https://appshunter.io/developer/1605824898) | [SAVAS KOC](https://appshunter.io/developer/1792030670) |

## What reviewers say

### Merge all PDFs

[App page](https://appshunter.io/ios/app/merge-all-pdfs/id6745615116)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nullify

[App page](https://appshunter.io/ios/app/nullify-redact-and-blur-docs/id6761437328)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $9.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Merge all PDFs free?

Merge all PDFs is free to download, with no in-app purchases.

### Is Nullify free?

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

### Do Merge all PDFs or Nullify have ads?

Merge all PDFs shows ads; Nullify does not.

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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.*