Proto.io is a new prototyping tool specifically designed for mobile app prototyping. Proto.io allows designers to quickly and easily create high-fidelity fully interactive mobile app prototypes that support native mobile functiona...
See More lity like screen transition, touch events and gestures. Prototypes not only can be viewed on the browser but also on the actual mobile device thus allowing the users to get a feel of their app before even producing a single line of code.