QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
HQ - HQ is the wildly popular live game app where you can win real cash prizes.
A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.
Decidr - Make better decisions with quick A/B polls
Trivia Crack Kingdoms - The amazing quiz game that lets you test your knowledge and challenge your friends to see who is the smartest. Developed by Etermax
Acquainted - A simple tool to create conversational polls and surveys