It says Free for a limited time. Enjoy.
AppShopper 4.5 Stars
Finger Physics has been the #1 TOP PAID Puzzle Game in the US, UK, Germany and more!
It has 28 Stages and 252 levels of finger puzzling amazing-ness.
You know what the best part of Finger Physics is? The updates with more levels! In the last 12 months Finger Physics has been updated 9 TIMES with 14 additional stages and 127 levels!
The price stays the same, but the levels keep coming.
99c usually. http://appshopper.com/games/finger-physics