brandquiz - Build beautiful, fully customizable quizzes, surveys & more
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Knowt - An app that uses AI to turn your notes into review quizzes.
Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
DOOZY - The social space for virtual teams
Quizf - Create a fun quiz and collect constructive feedback.