Apple Push Notification Service (APNs)

Apple Push Notification Service (APNs) is a secure communication system that delivers real-time notifications from apps or services to your Apple devices, such as iPhones, iPads, and Macs. When an app has important information—like a message, update, or alert—APNs sends this data through Apple's servers directly to your device, ensuring you receive timely updates without opening the app. It manages efficient, encrypted delivery, maintaining privacy and security, and helps apps stay responsive and up-to-date actively.