UX is referred to the user experience while UI means user interface. By analyzing the user experiences, the strategy and designs are changed or modified. The A/B testing, research in marketing helps to know the user experience. The user experience is needed for pointing out the weak sides of your business and improving them for better customer service. A good user interface design always increases the company’s growth and popularity. Though both UX design and UI design are important and need to stay close the roles are different. UX design is simple and technical while UI design is more complex.