After a period of Apple being under fire because kids were running up their parents' credit card bills with App Store and in-app purchases, Apple decided to do something about it. Apple's answer was to create a parental control system for the App Store so parents could approve or deny purchases that would otherwise have an impact on their credit card.
This parental control system is known as 'Ask to Buy' and it's available on both iOS and OS X in the latest releases of the operating systems, and in this tutorial, we'll tell you a little bit about how to configure and use Ask to Buy.