Hi — I'm a high schooler, and I built StudyStacks.
StudyStacks is a free study website with quizzes, flashcards, practice tests, and an AI study assistant to help you work through tricky questions.
I built it because I wanted a library of study guides that are actually easy to find and easy to use — not scattered PDFs, not paywalled apps, just a straightforward place to pick your class and start studying.
It's free, and it's going to stay that way. If there's something you'd like to see, or a class you wish had a guide, I'd genuinely love to hear about it — let me know here or reach out at studystackssupport@gmail.com.