if you want to constantly be aware of where your child is and control his smartphone, then just install the mobile tracker www.hoverwatch.com/ . The installation and registration process for Hoverwatch is extremely simple and straightforward. Overall, Hoverwatch does a great job of monitoring target devices in stealth mode.
if you have a teenager, you can find out where he is by simply asking and calling him. If your child is under the age of 13, then you can find applications that show his location.