Smartphone trivia games - more than just for fun

Over the past few years smartphone users saw the boom of an app called Trivia Crack. This app saw huge numbers of users of all ages, and while it was educational, the player cannot chose a level or "grade" of content to play as. With most students tween age and old having smartphones there's ways to have them use that source of entertainment for some education. 

While Trivia Crack lacks quite a bit of "educational tool" ability, Quizup (Click here to visit their webpage) is the same idea as trivia crack but allows for the content of the questions to be a specific topic. While there are hundreds of categories to choose from, there are still the important educational basics like science, geography, history, etc. The app can also be linked with social media (such as Facebook) which allows users who know one another to compete with each other. It would be great to set up an at home competition between the students to keep them thinking about class when they get home This is an excellent medium for students to be able to be rewarded for paying attention in the classroom and then retaining it outside of the school walls.