The convergence of real-time data, public transportation systems, and the Internet of Things (IoT), termed the Internet of Transportation Things (IoTT), is set to revolutionize the way transportation is experienced, with major players like IBM, Moovit, and Google Maps at the forefront. This transformation aims to enhance commuter accessibility and efficiency by utilizing advanced transit apps powered by real-time solutions like PubNub. Developers are guided on leveraging APIs such as the BART API to build real-time transit applications that provide updates on transportation schedules, improving user experiences by offering critical information like departure times and service disruptions. The article walks through the technical aspects of creating a transit app, including using geolocation data, integrating with Google Maps, and handling push notifications, while emphasizing the role of PubNub's APIs in facilitating real-time updates and improving public transportation systems. This development holds promise for reducing traffic congestion and increasing the reliability and ease of public transit through innovative digital solutions.