Lumosity - Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.

Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.

Brain Workshop - Brain Workshop is a open-source version of the dual n-back brain training exercise.

QuizClash - In QuizClash, you can challenge your friends or random opponents to a game of trivia.

Elevate - Elevate is an award-winning brain training tool designed to build communication and analytical skills.

QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.