Marvel App
Marvel makes it easy to switch PSD files into usable prototypes. The product links to DropBox and picks up PSD layouts and then you use their easy-to-use editor to build prototypes in a matter of minutes. There’s a handy feature that lets you send out links to the prototype to others. There’s support for iOS, Android, and other operating systems too – so that you can ensure that the recipient can use the prototype. Best of all – it’s free to use!
