# Site Audit One vs GPTZero

The clearest difference is update cadence: GPTZero at every 6 days against Site Audit One's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Site Audit One sells 3 in-app purchases, starting at $4.99 per 7 days and GPTZero sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Site Audit One ships an update every 2 weeks, GPTZero every 6 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Site Audit One | GPTZero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gptzero-bypass-ai-detectors/id6809795221/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 24 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Secgin LLC](https://appshunter.io/developer/1536282489) | [Bobby Preston](https://appshunter.io/developer/6783639579) |

## What reviewers say

### Site Audit One

[App page](https://appshunter.io/ios/app/site-audit-one/id6804841729)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Site Audit One Pro Weekly | $4.99 | per 7 days |
| Site Audit One Pro Monthly | $9.99 | per month |
| Site Audit One Pro Yearly | $59.99 | per year |


### GPTZero

[App page](https://appshunter.io/ios/app/gptzero-bypass-ai-detectors/id6809795221)

This tool analyzes text to determine if it was AI-generated, providing a likelihood score and sentence-by-sentence breakdown. It also offers a humanizer feature to rewrite AI-generated content into a more natural style, ensuring privacy by processing data on your device.

**Highlights:** AI-generated text detection, Sentence-by-sentence analysis, On-device private processing, Text humanizer, Camera and dictation input

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Detector & Humanizer | $6.99 | per 7 days |
| AI Detector & Humanizer | $89.99 | per year |


## Frequently asked questions

### Is Site Audit One free?

Site Audit One is free to download, with in-app purchases available.

### Is GPTZero free?

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

### Do Site Audit One or GPTZero have ads?

Neither Site Audit One nor GPTZero shows ads.

### Which is updated more often, Site Audit One or GPTZero?

Site Audit One ships an update every 2 weeks, and GPTZero every 6 days. Most recently, Site Audit One was updated on October 31, 2026 and GPTZero on October 31, 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.*