Firebase Cloud Messaging (FCM)

Firebase Cloud Messaging (FCM) is a service from Google that allows developers to send notifications and messages to users' devices via apps. It enables real-time communication by delivering alerts like updates, promotions, or important information, even when the app isn't open. FCM works across various platforms, including Android, iOS, and web applications, ensuring messages reach users instantly. This service enhances user engagement by keeping them informed and connected, ultimately improving the overall experience of using an app.