If you only target Android, which is 85% of the smartphone market (IDC) despite what some would like you to believe, you can try this and conquer the world: http://laughton.com/basic/

Or you could try http://www.yoyogames.com/gamemaker/studio/professional which will cost you some money.

Both solutions are easy to learn.

Personally, I don't want to help Apple gain market share. They're too lawsuit-happy and they take unilateral decisions when it comes to getting apps approved.