Help me understand how iCloud works, and get my game backups
I used to have an iPad 2. I used it the most, but occasionally I shared it with my family as well.
As such, there were multiple iTunes Appstore accounts used on the device, two Gamecentre accounts but just the one iCloud account that was the same as the account the device was originally registered with.
Thing is, I bought my games with another personal iTunes account down the line. And additionally, iCloud was not enabled until very recently.
Now, I have two questions I hope you can help answer.
1) The games get backup to which account - original device account, iCloud account, GameCentre account or iTunes Appstore account with which the purchase was made?
2) How do the backuping up of apps and games data work? Are they automatic in any way, or must they be manually done?