QuizClash - In QuizClash, you can challenge your friends or random opponents to a game of trivia.
Teachr - Agriya’s Udemy clone script, online teaching software helps you to start up your own online course learning platform and provide e-learning courses.
Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.
Google Classroom - Learning management tool by Google
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Skill Lake - Organize Learning | Content Track Progress | Grow Your People