As part of an ongoing response to the challenges enabled by in-app purchases, Apple has added a new section to the App Store explaining the ins and outs of app purchases.

The new section â titled "Learn More About In-App Purchases" â gives brief explanations on four topics: What Are In-App Purchases; Types of In-App Purchases; How In-App Purchases Work; and Parental Controls. The last section has links to Apple's Understanding Restrictions page and Parents' Guide.

The move is a part of Apple's ongoing efforts to deflect criticism over what some call a faulty in-app purchase system. Apple has come under fire lately after a number of children were able to run up sizable bills on their parents' charge accounts thanks to in-app purchases in so-called "freemium" games.