When you back up your iPhone, iPad, or iPod touch using iTunes on your computer, you back up your device’s settings, app data, Home screen, and app icons. You can also back up photos, music, and videos.
Your device’s settings include your device’s name, picture, wallpaper, and language.
App data includes data that your apps store on your device, such as your game progress and high scores.
Home screen includes the layout of your Home screen, including your app icons …