To develop an app like Getaround, start with thorough market research to understand user needs. Next, define key features such as user profiles, vehicle listings, real-time availability, booking systems, and secure payment options. Focus on intuitive UI/UX design to enhance user experience. Choose the right tech stack for both front-end and back-end development, ensuring scalability and security. Implement robust GPS and mapping features for location tracking. After development, conduct rigorous testing to identify and fix bugs. Finally, create a marketing strategy to attract users and gather feedback for continuous improvement.