AI Quiz App is a full-stack web application that allows users to take quizzes on various topics. It includes user authentication, role-based access (user, premium, admin), quiz creation, score tracking, and dynamic question rendering. Built with React.js for the frontend and Node.js with Express.js for the backend, this app is ideal for educational platforms, training modules, or developers looking to integrate a quiz engine. The app is connected to Razorpay for payment integration and deployed on Render. Clean UI, responsive design, and localStorage support included.