Do you kids share an iPhone, iPad or iPod ?
This app will help your kids share it equally, and use it for a certain amount of time, before they have to hand it over to the next player.
It works in the background as well, so the kids can play games on the device and when its time to pass on the device, an alert with sound will popup and tell it to them.
It can be used with real games and toys as well, as it uses alerts with sounds, which tells you who the next player is.
Download the app from Apple App Store here :