If you have a family with Children who use iPads and iPhones this maybe helpful. Today Apple released iOS 12, one of the biggest features is a new thing called ScreenTime.
ScreenTime allows you to monitor and control when your children can use the devices along with which apps, for example you can block games across the day except between 4pm and 5pm or allow them only 30 minutes across the week. After this time is used it will disable the app. Its a very easy way to control your Childs use of the device. There are now no excuses for kids being on devices late at night when they shouldn’t be.
The best part of this is that you can control it from your own device, so you don’t even need to physically use their iPad. Along with this you get a weekly report of how they are using the devices – what times, which apps and how often they pick up the device.
I found a guide here which shows you how to set it up. Before you do this, your devices need to be updated to iOS 12.