I used to play Subway Surfers all the time, but I don't anymore. Zombie Tsunami is also good cause you can go for various achievements, but lately I've just been playing Bounce, lol. Microtrip is also simple and fun.
play Store.
Edit: Damn I didn't pay attention to the "app store" part. I'm on android so it's possible that some of these are only available through Play Store.
Edited by rei, 05 July 2015 - 12:01 PM.