This design showcases the mobile user interface for a shopping application with an emphasis on an engaging onboarding experience and a clear categorization system. The onboarding screen uses a bold red as a background to create a striking visual impact, with a photograph of a person looking at a phone and the tagline 'Get paid for shopping' to convey the app's value proposition. A 'Continue' button at the bottom signals the next step in the user journey. The categories screen is a neatly organized grid with icons and labels for various shopping categories, enhancing discoverability and ease of navigation. The contrasting use of white space and red highlights facilitates a clean yet vibrant aesthetic.