Imagine you’re in a hurry to catch a flight, but as luck would have it, your phone battery dies and you miss your alarm, and your flight. Talk about missing a notification! Push notifications, as they are called, are messages that alert users in the form of pop-ups or alerts on mobile devices or desktop computers. Push services such as Apple’s APNS, Google’s FCM, and Microsoft’s WNS have dynamic traits, such as easy configuration, notification delivery, platform support, and user control. In ...