User Interface (UI) and User Experience (UX) are essential parts of creating and developing digital products/services. Simply, UI is anything that users do to interact on a website or mobile app, from the elements on the screen, keyboard, sound, even brightness levels. While UX is the part that directs all aspects of the individual interaction between the user and the company, product, or service.
In this case, Designing UI/UX should be created hand in hand. UI design acts as a facilitator for users to interact. While on the other hand, UX Design plays a role in mapping all kinds of user experiences.