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 excels in user interface design and prototyping with strong collaboration tools, making it ideal for UI/UX designers and teams. In contrast, ConceptDraw PRO offers comprehensive diagramming and project management features, making it more suitable for technical professionals and those needing advanced analytical capabilities.