Air Traffic Control Lite for Android is really quite simple and fun game, but requires much concentration to play.
You have planes and your job is to direct planes to their runways without crash. But as there are more planes at different speeds it becomes more difficult to land an aircraft properly.
The lite version has only three levels, two basic levels and a night level. However, it will certainly give more fun and you can forget everything for a while, because this game requires full concentration.