Fluid UI is a mobile app prototyping tool. It is fast, user friendly and very intuitive. It has been designed from the ground up with one aim, to save you time and money when prototyping and gathering requirements. 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. Our iPhone, iPad, Android, Android tablet and Windows 8 libraries will help you get a prototype up and running on a phone in a matter of minutes for better testing and happier clients.