# GPTZero vs Detect AI

GPTZero and Detect AI are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. GPTZero sells 3 in-app purchases, starting at $2.99 per 7 days and Detect AI sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | GPTZero | Detect AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/gptzero-ai-detector-humanizer/id6777924504/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 63 MB | 74 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shahzaib Ali](https://appshunter.io/developer/1727602303) | [Constantin Ginga](https://appshunter.io/developer/1835403346) |

## What reviewers say

### GPTZero

[App page](https://appshunter.io/ios/app/gptzero-ai-detector-humanizer/id6777924504)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $2.99 | per 7 days |
| Monthly Premium Access | $8.99 | per month |
| Yearly Premium Access | $49.99 | per year |


### Detect AI

[App page](https://appshunter.io/ios/app/detect-ai-paraphrase-tool/id6787736801)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is GPTZero free?

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

### Is Detect AI free?

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

### Do GPTZero or Detect AI have ads?

Neither GPTZero nor Detect AI 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.*