GPTZero: Twain Humanizer AI
Quill Essay Humanizer & Retext
About
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.
What's New in GPTZero
1.0.0
August 7, 2026
Subscription plans
TextCheck Plans Weekly
TextCheck Subscribe Plans Weekly
Developer apps
FAQ
What is GPTZero?
GPTZero is a tool designed to help you understand, review, and refine your content. It offers features like AI content analysis, originality checks, and text humanization to ensure your writing feels natural and original.
Does GPTZero have ads?
GPTZero does not contain advertisements, allowing for an uninterrupted user experience.
What are the subscription costs for GPTZero?
GPTZero offers several subscription plans: $4.99 per week, $9.99 per month, and $49.99 per year. Payment is handled through your iTunes Account upon purchase confirmation.
How does GPTZero's subscription renewal work?
Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the current period ends. Your account will be charged for renewal within 24 hours prior to the end of the current period.
Can I manage my GPTZero subscription?
Yes, you can manage your subscriptions and turn off auto-renewal by going to your Account Settings after purchase. Any unused portion of a free trial will be forfeited upon purchasing a subscription.
What devices is GPTZero available on?
GPTZero is currently supported on iPhone and iPod devices.
How often is GPTZero updated?
The latest version of GPTZero is 1.0.1, and it was last updated on August 7, 2026. Updates are released to improve functionality and add new features.
What is the age rating for GPTZero?
GPTZero has an age rating of 4+, making it suitable for a wide range of users.