ideas for app ;)

- game where one single shape (shapeA) at bottom of screen, tap shapeA to change the shape. 4 shapes and keep tapping and repeat. shapes come down one by one increasing speed as levels - 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 etc.
( shapeA = imgur.com/...)
^^