I led the design of PetKit, a smart pet care app that integrates real-time health monitoring, historical data analysis, and personalized care recommendations. The app simplifies pet management with intuitive navigation, customizable features, and a supportive community. Through usability testing, we refined the UI, prioritized direct access to key functions, and enhanced user personalization. The design system focused on clear data visualization and seamless smart device integration, addressing the need for a unified, tech-driven pet care solution. This project empowers pet owners with actionable insights to improve pet well-being.