Registering your app with APNs. Communicate with Apple Push Notification service (APNs) and receive a unique device token that identifies your app.First, add the Push Notifications capability to your app's Xcode project. Notify NYC is New York City's official emergency communications program. With APNs, developers will be able to send push notifications to iOS, iPadOS, watchOS, tvOS, and macOS devices. Under Apple Push Notifications service (APNs), click Configure APNs. Follow the on-screen instructions to create a new APNs certificate. I'm creating a game for iOS, testing it via Apple TestFlight (the new Appleversion of it). The app doesn't use Push Notifications. Select your App ID to create a new Apple Push Notification certificate.