Turn on Restrictions
- Go to Settings > General > Restrictions.
- Tap Enable Restrictions.
- Create a Restrictions passcode, then re-enter your passcode to confirm. Make sure to choose a passcode that's different from the passcode you use to unlock your device. If you forget your Restrictions passcode, you need to erase your device, then set it up as a new device to remove the Restrictions passcode. Restoring your device from a backup won't remove the Restrictions passcode.
Prevent in-app purchases or disable purchasing
When you tap Enable Restrictions, you can choose what’s allowed on your device. To prevent in-app purchases, turn off In-App Purchases. If you want to disable purchasing completely, turn off iTunes Store, iBooks Store, Installing Apps, and In-App Purchases.
You can also prevent purchases by removing your payment method from your account.
Require a password for each download
If you don't want to prevent in-app purchases or disable purchasing completely, you can require a password before downloading content from the iTunes Store or App Store.
Manage your child's account
If you use Family Sharing, you can let your child make purchases with Ask to Buy.
The iTunes Service is only available for individuals 13 and older or children under 13 who have received an Apple ID through the Apple ID for Students program. If your child is under the age of 13 and isn't an educational Apple ID holder, Apple must close and delete all information associated with their account.
With Restrictions, you can also control access to certain applications, features, and content types.