GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. PDFgear records 2,845,280 monthly visits with -3.4% growth and Free pricing.
AI detection and writing verification built for schools and editors
A free, AI-powered PDF editor for every device
| Dimension / Metric | ||
|---|---|---|
| Official Domain | gptzero.me | pdfgear.com |
| Pricing Model | Freemium, Paid | Free |
| Monthly Visits | 23.25M (23,246,989) | 2.85M (2,845,280) |
| MoM Traffic Delta | +5.7M (+32.5%) | -100.48K (-3.4%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇺🇸 United States (23.3%) |
| Direct Visits / mo | 7.53M | 675.08K |
| User Rating | 4.1 | 4.5 |
| Supported Platforms | Website | Website |
AI detection and writing verification built for schools and editors
Paste text or upload a document and get an overall AI probability score plus a sentence-by-sentence breakdown of which parts look machine-written.
Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.
A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.
Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.
A free, AI-powered PDF editor for every device
Edit text, images, shapes, links, signatures and form fields in a document as easily as in a word processor.
Chat with a PDF, generate summaries and extract answers or text from long and awkwardly laid-out documents.
Convert between PDF, Word, Excel, PowerPoint, TXT and images, including batch conversion with lossless output.
Turn scanned or image-based documents into fully editable Word or TXT files.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Desktop document suite providing advanced editing, OCR conversion, and AI-powered chat assistance for local files.
Desktop document suite providing advanced editing, OCR conversion, and AI-powered chat assistance for local files.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
Cloud-based document platform offering robust PDF editing, format conversion, and interactive AI chat features.
Cloud-based document platform offering robust PDF editing, format conversion, and interactive AI chat features.
Browser-based PDF workspace combining document conversion, e-signatures, and automated AI summarization tools.
Browser-based PDF workspace combining document conversion, e-signatures, and automated AI summarization tools.
Feature-rich cross-platform PDF editor with integrated GPT capabilities for deep document summarization and analysis.
SpecialistLightweight conversational platform designed specifically for fast, effortless Q&A and summarization across uploaded PDF documents.
