Locking an app & setting a time limit on an iOS device iPhone iPad

This video shows you how to lock the app so children cannot change it to another game without your consent. Also you can setup a time-limit if you are concerned about the amount of time a child is using the app for. This is particularly useful in a classroom setting if you are not always with the children when they are using the iPads, you can rest assure they cannot change the game or load up something else when you are not watching.