MamaBearThe MamaBear app is an all-in-one monitoring app that monitors your child's location, social media accounts, check-ins and can even let you know if your kids are speeding when driving or riding. The options available with this app are robust and you can set various parameters and receive alerts when those parameters are broken (like when a curse word is posted on his Facebook page) or met (when your son arrives home from school). The app is free for iOS and Android users and there are paid levels of membership that offer more in-depth monitoring features (pricing ranges from $4-$5 per month). Setup is simple; you just install the MamaBear app on your phone, then install it on your child's phone and then customize the settings to create your monitoring parameters.
This app is ideal for younger kids who are getting their first taste of independence, rather than teens, since it requires the app to be on your child's phone and a rebellious teen could uninstall it to quickly disable monitoring. It's also designed for two-way communication as much as it is monitoring, allowing kids the option to "check in" with you using emoticons or emergency alerts, which is especially helpful for kids who are beginning to walk to or from school on their own.