Pile It 3D, developed by BasicGames, is a free game available on iPhone. It is a brain-teasing game that requires you to sort colorful balls into different tubes, which are knotted together. The objective is to guide the balls into the right position at the bottom of the tubes.

The game may sound simple, but it quickly becomes challenging as you progress through the levels. You must think carefully about which tube to choose for your balls in order to succeed.

Pile It 3D has superb graphics and super satisfying mechanics that make the game enjoyable. As a bonus, your IQ increases by 2 points for every level you win on the first try.

Overall, Pile It 3D is a great game for those who love brain games and want to relieve stress. Download it now and put your thinking organ to the test!