In this section, we delve into the critical aspect of app development—designing the user interface (UI) and user experience (UX). The process starts with creating wireframes, which are simple sketches that depict the layout of the app. Students are encouraged to visualize where buttons, images, and text will be placed on the screen. This stage not only helps in organizing features but also guides how users will interact with the app, laying the foundation for an intuitive and effective user experience. A well-designed interface is vital for user satisfaction, influencing whether users will continue to use the app or abandon it.