Stefan Mileschin

Your iPhone or iPad automatically backs up to your iCloud account by default, but you can also create more comprehensive, local backups from iTunes. Apple only offers 5 GB of iCloud space for free, so you may need to manage your iCloud backups.

Many apps will automatically “back up” your data to the appropriate service, too. For example, when you use Gmail, your emails are stored on Google’s servers with your Google account — you don’t have to back anything up.

http://www.howtogeek.com/183509/what...-ipad-backups/