curbi can remotely enable and disable Restrictions on a device.   To edit a restriction open the curbi Parent App on your device:

Tap the "Device Name" you wish to restrict > tap the Device tab > Edit Restrictions

In this example I have DISABLED Safari, Install Apps and Explicit iTunes Content

Disabling (GREY) means you DO NOT want them to use it. So this example will hide Safari and the App Store.

Enabled (GREEN) means you ALLOW it.