Amazon's Appstore for Android include apps that allow in-app purchases. In-app purchases may include items like premium content, subscriptions and game unlock codes.
To prevent a scenario in which your 3-year-old daughter accidentally makes an in-app purchase of an unlock code while playing Cut The Rope (true story), here's how to set the Amazon Appstore's parental controls :
Enable parental controls
Step 1: From within the Amazon Appstore, touch the menu key and select Settings.
Step 2: Select Parental Controls.
Step 3: Check the first box to enable parental controls and enter your Amazon.com password. This will force you to enter your Amazon.com password or a PIN to make in-app purchases. Check the second box if you prefer to use a 4-digit PIN rather than your Amazon.com password.
Disable in-app purchasing
To completely disable in-app purchasing, go to Settings > In-App Purchasing and uncheck the box next to Allow In-App Item Purchases, then enter your password to confirm.
That's it. Amazon Appstore purchases aren't refundable, so set those parental controls and don't end up with a surprise bill, like that dad, whose 3-year-old magically unlocked all the boxes in Cut The Rope. And by magically, we mean a $0.99 in-app unlock code.