UI focuses on the visual aspects of a product, like screens, buttons, and icons, ensuring they are aesthetically appealing and easy to interact with. UX, on the other hand, emphasizes the overall interaction with a product, aiming to make it functional, accessible, and enjoyable. Moreover, if you ever wish to hire a UI UX designer for your project, you can contact a UI UX design company in London. Read here to explore more about the differences between UI and UX design.
Source: What is the Difference Between UI Design and UX Design?