Fluid UI is a browser-based wireframing and prototyping tool developed by Fluid Software and used to design mobile touch interfaces.
License: Freemium
Fluid UI is focused on user interface design and prototyping, offering strong collaboration and real-time editing features, making it ideal for designers and teams working on app development. In contrast, SmartDraw excels in diagramming and visual communication, providing robust tools for creating various types of diagrams, making it suitable for business and project planning.