Disable in-app purchases on iPad, iPhone or iPod touch

Recently, a 5-year-old boy named Danny Kitchen racked up a bill over $2500 in ten minutes on premium add-ons while playing an iPad game called Zombies vs Ninja. Of course, App Store purchases require a password, but Danny’s parents foolishly provided him with the password.
After a few days the family was able to get Apple to reverse the charges. Danny’s parents could have also avoided this problem if they disabled in-app purchases altogether on their iPad.
How to Disable In-App Purchases
Step 1. Tap Settings then General.
Step 2. Tap Restrictions and then Enable Restrictions.
Step 3. Enter a Restrictions passcode (one that your child can’t guess.)
Step 4. Scroll down and slide In-App Purchases to the Off position.
That’s all there is to it. I recommend turning off in-app purchases for anyone who has a child that is using an iPad, iPhone or iPod touch.