When using Apple devices or Apple services, Apple requires an “Apple ID” to make everything work. An Apple ID is basically your Apple account that’s used for everything from logging in to iCloud to making purchases to getting support to tracking your lost devices and items with Find My.
An Apple ID authenticates your identity and is required whenever you log into an Apple device to keep everything synced up. Making an Apple ID is entirely free, and this guide features everything you need to know about signing up and using your Apple ID.