Apparatus – Amazon Free app of the day

Don’t lose your marbles. Build a machine that sends them rolling toward their goal, choosing from materials such as wooden planks, wheels, batteries, ropes, and motors. This addictive physics-based construction game lets you progress from level to level or play around in Sandbox mode. Let ’em roll!

Get it here
http://www.amazon.com/mobile-apps/b/ref=topnav_storetab_mas?ie=UTF8&node=2350149011
http://www.amazon.com/gp/product/B00558OZ3K?ie=UTF8&ref=mas_faad