Using the power of external servers, application push notifications provide helpful information like flight change information, sports scores, and news stories—even when you are not using the app. In this course, Steven Lipton covers push notifications in iOS 10, and shows how to set up an app to accept push notifications and which tokens and certificates help make your notifications work. Plus, he explains how notification payloads work, and what service and content extensions mean for customizing your app's notifications.