Origami Studio is about design prototyping, is used by Facebook and Robert Lang is known as Mr. Origami. It has been around for a while . Currently it has been upgraded and polished so that it runs on i devices . There are tutorials which help you master the different aspects and functions of it. Robert Lang has a long history of origami interest , skills and of the mathematical foundation of this ancient art of paper folding. There is a review of Origami Studio here which explains how they benefited from Deign Studio prototyping on Facebook. There is a starter tutorial here but he sound quality isn’t the best. There is a Mac version and iPhone/iPad version. So far nothing for Android or PCs.