Study guides and flashcards for college level and advacned high school classes.

Create classes, add students, build random lists and pairings.

The fastest way for teachers to create, share, and grade online quizzes.

Build multiple sets, add and delete terms, study anywhere.

Track meals, moods, and health metrics in one place.

Estimate your skill rating from match stats.

Dynamic lists you can share and edit with friends realtime.

Can you beat the Wordle AI? Use our algorithm to solve the daily Wordle or solve it yourself.

Create ranked lists of your favorite movies, books, restaurants, and more. Share them instantly with friends or on social media.