In a four-month collaboration with the Behavioral Health and Wellness Group, we, a team of graduate students from Pratt Institute, developed HealSmart, a healthcare app targeting post-surgery patients. We conducted extensive research and design activities, focusing on user research, prototype design, and design system finalization. Through user interviews, competitive analysis, and usability testing, we aimed to create an intuitive mobile app integrating evidence-based prevention strategies and personalized recovery tools. Our project emphasizes the significance of effective project planning, communication, and component-based design systems in healthcare app development