Fluid UI is recommended for UX/UI designers, product managers, and developers who need to quickly create and iterate on interactive prototypes. It is particularly useful for teams that require real-time collaboration and feedback. It's also suitable for individuals who are new to design tools, thanks to its intuitive interface.
Invision - Prototyping and collaboration for design teams
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Proto.io - Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should. Sign up for a free 15-day trial and get started.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Axure - The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.