Well personally I like a game on IOS and Android called "Brave frontier" It's a pretty neat game that I think everyone should check out. Although lately I have been looking for other games similar to it. Or anything really that is fun .
My favorite app is an app called Deemo, by Rayark? it's about a girl that fell in to a cave of sorts, and you have ot try and grow a tree by playing piano songs to make it grow faster, it's not free but really worth it!
>>5 I love deemo, and if you like that they'res another rhythm game by the same developer called Cytus. It's a great game and the story is fantastic. You can really tell the developers put a lot of time and effort into the game.