# SiteAuditOS vs PDFix

The clearest difference is iOS requirement: PDFix at 15.0 against SiteAuditOS's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SiteAuditOS sells 4 in-app purchases, starting at $19.99 per month and PDFix sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | SiteAuditOS | PDFix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 2 MB | 57 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ARKA Systems LLC](https://appshunter.io/developer/1873596855) | [Kerem Cebi](https://appshunter.io/developer/1452328491) |

## What reviewers say

### SiteAuditOS

[App page](https://appshunter.io/ios/app/siteauditos/id6759220035)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | per month |
| Agency | $39.99 | per month |
| Pro (Annual) | $149.99 | per year |
| Agency (Annual) | $299.99 | per year |


### PDFix

[App page](https://appshunter.io/ios/app/pdfix-easy-pdf-editor/id6766175427)

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

**In-app purchases (2)**

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


## Frequently asked questions

### Is SiteAuditOS free?

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

### Is PDFix free?

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

### Do SiteAuditOS or PDFix have ads?

Neither SiteAuditOS nor PDFix 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.*