The key difference between wireframes, mockups, and prototypes lies in the level of detail and interactivity they offer. Wireframes are basic, low-fidelity sketches that outline the structure and layout of a mobile app, focusing on functionality rather than design. Mockups are high-fidelity, static designs that include visual details like colors, typography, and images, providing a realistic preview of the app’s final look. Prototypes are interactive models that simulate the user experience, allowing users to test and explore the app’s functionality and navigation before development begins.