piyushkamal35-cmyk/Pinypal-2 ? reverse-engineered prompt

Build me a simple vocabulary practice app called Pinypal that helps people study words through quick quizzes and track how they are doing over time.

I want a clean front end where a user can jump into a quiz, see questions one at a time, choose answers, and then get their score at the end. It should also have a stats page that shows progress and past performance in a nice easy to read way. If it makes sense, include saved user data so progress is not lost, and add a way to handle repeated study of missed words. A polished mobile friendly layout would be great, with a calm friendly look.

Please wire up the app so it runs smoothly end to end, and if you need to check current docs for anything, feel free to look them up online.