To make your mobile app design UI intuitive and user-friendly, it's crucial to follow design principles that prioritize simplicity, clarity, and ease of use. Your first step should be to understand your target audience and their needs. Find out where users are having pain points and how they can be improved. You can do it through user research and testing. Keep the user interface design for mobile applications clean and uncluttered. Ensure the layout of the app is logical to guide users through its features. Making use of familiar design patterns and conventions that users are already familiar with minimizes the learning curve. Labels, icons, and visual cues should be consistent, clear, and easy for users to understand.