A free program for Android, by Mobile Fence.

An all-in-one parental control app is Mobile Fence Parental Control – Screen Time. Using this program, you can stop your kids from accessing inappropriate websites, apps, and movies via means of smart gadgets, and regulates usage time. It also gives you the ability to track your child’s whereabouts in real-time and receive alerts when they enter or depart a safety zone that you have established for them. In addition, Mobile Fence Parental Control – Screen Time allows you to set a location for your child. This location will be the same for all of your children. You can also add keywords to be alerted when your child receives a text. Finally, Mobile Fence Parental Control – Screen Time allows you to block calls and texts, as well as view the contact list of your child’s friends and relatives.