Pricing

With Premium, you can scan texts of any length - without any restrictions. While the free version is limited to 500 characters (about one paragraph), Premium users can process entire books, dissertations, or documents of any length at once. Perfect for professional use cases like academic papers, long articles, or extensive documents.

Lifetime Premium is the best choice for long-term users. After just 3 months, you've already saved more than with a monthly subscription. You pay once and get lifetime access - no recurring fees, no surprises. Especially valuable for students, researchers, and content creators who regularly work with AI-generated texts. Lifetime users also automatically receive all future features at no additional cost.

The free version has three limitations: 1) Only 500 characters per scan, 2) 60-second cooldown between individual scans, and 3) maximum 5 scans per hour. With Premium, all these limits are completely removed - unlimited characters, no cooldown between scans, and unlimited number of scans. Ideal when you need to process multiple or longer documents.

Document upload (.docx, .pages) is our most precise detection method. While text scanning shows all potential watermarks (sometimes flagging legitimate formatting), document upload understands your document's structure and filters real watermarks from normal formatting. The result: Fewer false positives, more accurate detection. Plus, your formatting (bold, italic, etc.) is fully preserved. Only available for Premium users.

Our detection scans for all known zero-width and invisible formatting characters. We update the character list as new problem characters are identified, at no additional cost to Premium users.