Mindstorm Studios is dedicated to making great games that the users can experience free of charge while paying for in-game benefits and customizations if they deem it fit. We also realize the importance of robust security during financial transactions. We utilize Apple’s most up-to-date protocols for in-app purchases and prompt users to confirm purchases before they are charged. Within this system, Apple keeps all customer financial information to ensure privacy and is the party responsible for confirming each transaction.
We realize that this process is not perfect and there may be circumstances under which a customer could purchase an item inadvertently. This is specifically known to occur after a user has entered his or her password, for example, to download an app initially. Apple stores this password information for a period of time. During this time, it is possible to make purchases without further authentication and though the service is place as a convenience to the customer it can result in inadvertent purchases.
Customers who are concerned about accidental purchases can find instructions for disabling in-app purchases here:
http://support.apple.com/kb/HT4213