MACvsBMD for Mac

From Arcane Designs:

The game starts out with a grid of 20x10. The rows and columns are filled with various symbols and shapes. The idea is to tap on all the symbols that are alike and are adjacent to each other. Simple, eh? So what's so fun about that? Well, first off, as you get rid of all the similar symbols, the columns collapse to fill in the empty spaces left by the matches. Everything shifts and you are left with trying to use more strategy in your moves rather than haphazardly clicking away at the board. You score points for each match which can be 2 tiles or more. It's really satisfying to see many tiles all go down at once through careful planning.