For apps that have been added to a child’s Freetime profile, any IAP items bought on the parent profile will not be available. This includes consumable, entitlement, and subscription IAP items. In addition, users will be unable to purchase the IAP items from within the Freetime profile.
For general FreeTime information as a developer, please go to: https://developer.amazon.com/appsandservices/support/faq#Tablets:%20FreeTime
Keywords: freetime, IAP, kids, profile