What is UI Design? What is UX Design? UI design and UX design make the most often conflated and confused terms in web and app design. And understandably so. They are usually used together in a single term, UI/UX design, and seen from the surface; they appear to be describing the same thing. It is often hard to find reliable descriptions of the two that do not descend too far into jargon. By the time this article, you will have a good understanding of what differentiates them and ho ...