How to set up iPad Parental Controls (Restrictions)
Family Sharing on iOS8
Click here for the Apple Guide to Family Sharing
Ask to Buy (included in Family Sharing)
Click here for the "How to Use Ask to Buy in iOS8" Guide
To control spending by kids, the organizer can turn on Ask to Buy for any family member who is not an adult to require approval for any purchase or free download requests. When a purchase is initiated, a notification will be sent to the family organizer who can review the item and approve or decline the request right from their own device. It’s a great way to give kids the freedom to make their own choices while still controlling their spending.