It seems to be very helpful to do earlier prototyping of your Applications. Show your ideas at the beginning of your project life cycle and getting the right feedback from the customer could help you to build and design a great software. In this post, we will see an android UI prototyping tool : UI Prototyping Stencils You can find answers to many issues and perform your software quality . What the customer expects? What is required and what is optional? How to show customer a GUI without implementing? How to organize menus? What are the desired colors? We can answer earlier these questions by using a Prototyping tool . The Sentil for the Pencil GUI prototyping tool is available as an add-on for Firefox and help you to do Prototyping of Abdroid UI. To install: Install the Pencil add-on. Open Pencil by clicking Tools > Pencil Sketching... in Firefox. Right-click...