# GPTZero vs Invoice Maker

The clearest difference is ratings volume: GPTZero at 3 against Invoice Maker's 1. On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. GPTZero sells 3 in-app purchases, starting at $4.99 per 7 days and Invoice Maker sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for GPTZero against 5.0 for Invoice Maker. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | GPTZero | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/gptzero-twain-humanizer-ai/id6758375448/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/invoice-maker-send-and-track/id6775569970/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 16 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Najmudin Cahyono](https://appshunter.io/developer/1852725014) | [Borislav Rusev](https://appshunter.io/developer/6775569972) |

## What reviewers say

### GPTZero

[App page](https://appshunter.io/ios/app/gptzero-twain-humanizer-ai/id6758375448)

This tool helps you analyze and refine your writing. It checks for AI-generated content, verifies originality, and enhances text for a more natural tone. You can also generate essays and analyze audio for AI speech.

**Highlights:** AI Content Analysis, Originality & Plagiarism Check, Humanize Text, Essay & Content Generator, AI Audio Detection, Easy Input & History

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TextCheck Plans Weekly | $4.99 | per 7 days |
| TextCheck Plans Monthly | $9.99 | per month |
| TextCheck Plans Yearly | $49.99 | per year |


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-send-and-track/id6775569970)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $7.99 | per 7 days |
| Pro Weekly | $8.99 | per 7 days |


## Frequently asked questions

### Is GPTZero free?

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

### Is Invoice Maker free?

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

### Which has better reviews, GPTZero or Invoice Maker?

GPTZero and Invoice Maker are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do GPTZero or Invoice Maker have ads?

Neither GPTZero nor Invoice Maker 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.*