Yes it will do that when the phone is connected to WiFi on your home network. The kids still can use 4G or your minutes to connect, so be careful. If they're locked out of WiFi, kids are smart enough or will just let the phone connect and you may go over your phone plan. As for you home network, all items, tablets, phones, pcs, macs etc will be visible to you on your phone. Each kid will have an account set up by you and on your phone you can limit their access, reward them for good behavior with extra time and set bedtime hours. You do need to purchase a subscription, 3 month, 1 year or lifetime. AND make sure you figure out how to limit their cellular access with services like AT&T Secure Family or whatever your provider offers.