If you back up your iOS devices in iTunes, you can see some useful info about them in iTunes: phone number, serial number, etc.
Be very careful if you get an iMessage or SMS like this.
Use one of these methods to transfer a file from your Mac to your iPhone, iPad, or iPod touch.
There’s a simple trick making the rounds that claims to clear out storage on your iOS device. It works, a bit, sometimes…
You can have the iOS Music app show your music in the cloud, purchased or in iCloud Music Library, or only show music you’ve synced to the device. Here’s how.