Whistl

Based on the textual content, Whistl's design appears to be clean, modern, and highly functional, prioritizing user trust and ease of use. The emphasis on clear headings, bullet points, and distinct call-to-action buttons suggests an intuitive user interface. The structured presentation of features like 'Know Your Health Score' and 'How Protection Works' indicates a well-organized layout that guides users through the app's capabilities. The concept of 'mate-based accountability' and 'gamified recovery' points to a thoughtful user experience that encourages engagement and support. The overall aesthetic, while not visually present, is implied to be professional and reassuring, aligning with its mission to provide a 'privacy-first digital referee' for sensitive issues like gambling addiction.