Mobile UI, or Mobile User Interface, refers to the design and layout of applications and websites specifically for mobile devices like smartphones and tablets. It focuses on creating an intuitive and user-friendly experience, ensuring that users can easily navigate and interact with the content on smaller screens. Key elements include touch-friendly buttons, simplified menus, and responsive layouts that adapt to different screen sizes. Effective Mobile UI design also considers factors such as user experience (UX) and accessibility. Designers aim to minimize clutter and prioritize essential features, making it easier for users to find what they need quickly. This approach enhances overall satisfaction and encourages continued use of mobile applications.