# GPTZero vs Originality.AI

The clearest difference is rating: Originality.AI at 5.0 against GPTZero's 4.3. GPTZero's advantage is ratings volume (139 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. GPTZero sells 5 in-app purchases, starting at $7.99 per month and Originality.AI sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Originality.AI holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: GPTZero has 139 ratings behind it against 1, so its average is the more settled of the two.

GPTZero ships an update every 8 days, Originality.AI every 6 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GPTZero | Originality.AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (139 ratings)](https://appshunter.io/ios/app/gptzero-ai-detector-humanizer/id6754876362/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/originalityai-ai-detector/id6786447784/reviews)** |
| Number of ratings | **139** | 1 |
| Positive reviews | 70.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 25 MB | 11 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Appzone Dijital Hizmetler Anonim Sirketi](https://appshunter.io/developer/1844869089) | [atakan yelkovan](https://appshunter.io/developer/1875979420) |

## What reviewers say

### GPTZero

[App page](https://appshunter.io/ios/app/gptzero-ai-detector-humanizer/id6754876362)

This tool helps determine if content is human-written or AI-generated. It offers detailed analysis, a plagiarism checker, and an AI humanizer to refine text. Ensure your content's originality and authenticity with advanced detection technology.

**Highlights:** AI content detection, In-depth analysis, AI humanizer, Plagiarism checker, Content scoring

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Detector Monthly Pro | $7.99 | per month |
| AI Detector Weekly Trial | $9.99 | per 7 days |
| AI Detector Monthly Premier | $14.99 | per month |
| AI Detector Yearly Pro | $24.99 | per year |
| AI Detector Yearly Premier | $29.99 | per year |


### Originality.AI

[App page](https://appshunter.io/ios/app/originalityai-ai-detector/id6786447784)

This writing companion checks for AI-generated content, plagiarism, and grammar errors. It also offers proofreading, text humanization, and summarization features to polish your work.

**Highlights:** AI content detection, Plagiarism checker, Grammar and spelling correction, Text humanizer, Content summarizer, Proofreading

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Detector Weekly Trial | $7.99 | per 7 days |
| Detector Monthly | $17.99 | per month |
| Detector Yearly | $44.99 | per year |


## Frequently asked questions

### Is GPTZero free?

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

### Is Originality.AI free?

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

### Which has better reviews, GPTZero or Originality.AI?

Originality.AI is rated higher. GPTZero averages 4.3 out of 5 from 139 ratings, while Originality.AI averages 5.0 from 1 ratings.

### Do GPTZero or Originality.AI have ads?

Neither GPTZero nor Originality.AI shows ads.

### Which is updated more often, GPTZero or Originality.AI?

GPTZero ships an update every 8 days, and Originality.AI every 6 days. Most recently, GPTZero was updated on November 5, 2026 and Originality.AI on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*