Lumosity - Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Brain Workshop - Brain Workshop is a open-source version of the dual n-back brain training exercise.
A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.
Elevate - Elevate is an award-winning brain training tool designed to build communication and analytical skills.
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