FluidUI is a mobile app prototyping tool. It is fast, furious and free to use. Create everything from low fidelity wireframes to high fidelity prototypes. Rapidly see and interact with them on a mobile device to aid testing and design. Supports iPhone, iPad, Android, Android tablet and Windows 8. Fluid UI aims to save you valuable time and money during the prototyping and requirements gathering stage of the design process.
Try it free at www.fluidUI.com
