QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
NWEA Assessments - NWEA Assessments creates a personalized assessment experience by adapting to each student's learning level.
2016 Photo Challenge - Take a photo every day for 366 days
ALEKS - ALEKS is a web-based artificially intelligent assessment and learning system that uses adaptive questioning to accurately determine exactly student knows.
Woolah - Knockout Photo challenges with your friends.
iSpring QuizMaker - iSpring Quiz Maker is easy-to-use quiz software. Create interactive quizzes and surveys in HTML5 & Flash and embed them in a website or publish for any LMS!