This technical note advocates for integration of public transport in Costa Rica to create a seamless, efficient mobility system similar to the fluid experience of using a smartphone. The authors, David Gómez and Sofía Fallas, define integration through four essential dimensions: modal, fare, infrastructural, and institutional, illustrating these concepts with global success stories like Medellín, Helsinki, and Vienna. By examining international case studies, the text highlights how coordinated schedules, electronic payments, and dedicated transit lanes can effectively compete with private vehicle use. The document emphasizes that successful modernization requires centralized governance and a shift toward urban development oriented around transit hubs.