The apple account is the master key to using all services and features on your Apple device. Whenever you buy an Apple device, the first thing you need to do is to set up an Apple ID. Now, it is quite possible that you already have an ID thanks to a previously purchased device, but this does not stop you from creating another one with another email id.
Your Apple ID is unique and must not be shared with unknown contacts. Apple has introduced a lot of security protocols to keep your ID and synced data safe, but the final step is in your hands.
Now, if you are using an iPhone and you want to link a new Apple ID to it, there is easy for you to update these credentials.
In this tutorial, we will show you how to change the Apple ID on an iPhone.