Integrating push notifications into mobile applications is essential, especially for real-time updates like those in a sports app. Firebase Cloud Messaging (FCM) is a free service from Google that facilitates reliable push notifications on Android by supporting notification and data messages, which developers can use to update users or sync data. PubNub enhances this capability by integrating FCM into its Real-time Communications Platform, simplifying the process of sending push notifications, especially when apps run in the background or have connectivity issues. The PubNub platform supports multiple operating systems, allowing developers to use a single set of libraries for both data streams and notifications, and offers features like auto-scaling and A/B testing via the Firebase Console. To implement FCM with PubNub, developers must configure their Android app and set up notification channels, allowing them to send real-time updates efficiently, with minimal code adjustments, and without the need for additional servers.