Why use Azure Notification Hub with Push Notification Service?

Let’s know why to use PNS with Azure Notification Hub push engine that allows us to send notifications from any platform to any platform.

How to send Push Notifications from server to devices.

What is Push Notification ? Push notification is a feature that allows an app to notify user of new messages or events, even when the user is not actively using your application. Like on Android devices, how a whatsapp message will make a sound and icon appear in the status bar. What is Apple Push Notification service(APNs) ? "Apple Push Notification service" is the service for implementing the push notification feature for IOS devices. How it works ? Each device establishes encrypted IP connection with the service and receives notifications over this persistent connection. If a notification for an application