Crochet for Gadget is an application helps to create a crochet forany size of rectangular gadgets (phones, electronics, DIY projects,etc.). Measure the size of the gadget and type in a form, the appgenerate a crochet pattern fit for the gadget. It has a built inpattern player. If there is a change in pattern the app will say italoud the number and type of next crochets. The pattern can bewalked through manually with a Bluetooth button or automaticallywith a timer. The app support statistics: full length of yarn, timeneed, and project cost etc. Tutorial:http://www.instructables.com/id/Crochet-for-Gadget