Santiago Romani Castroman has Brain Teaser: Pro (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $2.99) for a limited time.

Using different shaped pieces connected by balls of the same color, you must complete the given challenges in two ways: “flat and three-dimensional puzzles priamides”. Book includes 63 different challenges, with solutions to each of them. Format game ideal for travel, in the plastic case book challenges and balls saved. Stimulates ingenuity and spatial perception.