Apple's growth strategy focuses on the individual customer with specific needs. Anyone with an Apple device has to register it using an Apple ID. An Apple ID can access Apple services like the App Store, Apple Music, iCloud, iMessage, FaceTime, and more. These unique IDs capture information and make recommendations based on what customers like. For users, this is convenient. For Apple, it's a tool that offers insights into what customers like, and it can be used for target marketing. Apple uses .