Transport, Delivery, and Logistics (T&L) applications benefit from real-time capabilities offered by PubNub, a developer platform that facilitates seamless, cross-platform data interactions. Key features of PubNub include real-time updates, efficient routing, and secure communication, which are essential for tracking shipments, managing fleets, and synchronizing supply chain data. The platform supports a publish/subscribe model, enabling users to send and receive global updates in under 30 milliseconds, ensuring that information such as shipment locations and route changes is instantly shared with relevant parties. PubNub also offers features like presence monitoring for asset status, message persistence for historical data retrieval, and mobile push notifications for offline stakeholders. Its App Context feature allows for easy management of metadata, while Access Manager secures data streams by regulating user access. Furthermore, PubNub's Functions enable event-driven actions, and its Insights and Illuminate tools provide analytics and decision-making capabilities to optimize logistics operations and improve key performance indicators. Overall, PubNub provides a robust backend for T&L applications, allowing developers to focus on enhancing operational efficiency and customer satisfaction.