GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. SimplifiedIQ records 196 monthly visits with -53.8% growth and Paid pricing.
AI detection and writing verification built for schools and editors
Assessment infrastructure for exams that must stand up to scrutiny
| Dimension / Metric | | |
|---|---|---|
| Official Domain | gptzero.me | simplifiediq.com |
| Pricing Model | Freemium, Paid | Paid |
| Monthly Visits | 23.25M (23,246,989) | 196 (196) |
| MoM Traffic Delta | +5.7M (+32.5%) | -228 (-53.8%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇮🇳 India (100%) |
| Direct Visits / mo | 7.53M | 66 |
| User Rating | 4.1 | 3.8 |
| 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.
Assessment infrastructure for exams that must stand up to scrutiny
Generate new questions with AI controls, import existing question banks, or upload documents and convert them into assessments that are centrally managed and version-controlled.
Run tests online, offline or hybrid, including a portable edge device for low-connectivity locations, while keeping identity verification and tamper-proof activity logs in place.
Identity verification, environment checks, full-screen lock, device blocking, behaviour and focus tracking, session recording and automatic flagging, with live, asynchronous or on-site supervision.
Auto-grade multiple-choice, essays, short answers, code challenges, tablet handwriting and scanned paper scripts, with plagiarism checks, audit trails and reporting on every adjustment.
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.
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.
Free / Open-sourceAll-in-one IB and MYP exam prep with an AI study partner
Free / Open-sourceAll-in-one IB and MYP exam prep with an AI study partner
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.
Free / Open-sourceAdaptive reading comprehension practice with instant data for every student
Free / Open-sourceAdaptive reading comprehension practice with instant data for every student
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
Free / Open-sourceAI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams
Free / Open-sourceAI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams
AI detector that highlights evidence, not just a score
AI detector that highlights evidence, not just a score
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
