# PDFix vs Cortex

The clearest difference is in-app purchases: PDFix at none against Cortex's 1. Cortex's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Cortex sells 1 one-off in-app purchase. PDFix asks for nothing beyond the download.

## The numbers

| Metric | PDFix | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Size | 4 MB | 84 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dinesh Malla](https://appshunter.io/developer/1838122307) | [Ippocode Technologies LLP](https://appshunter.io/developer/1852421273) |

## What reviewers say

### PDFix

[App page](https://appshunter.io/ios/app/pdfix-editor-and-document-scan/id6756648182)

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

**In-app purchases:** none


### Cortex

[App page](https://appshunter.io/ios/app/cortex-local-ai/id6757537386)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex Pro | $19.99 | one-time |


## Frequently asked questions

### Is PDFix free?

PDFix is free to download, with no in-app purchases.

### Is Cortex free?

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

### Do PDFix or Cortex have ads?

Neither PDFix nor Cortex shows ads.

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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.*