There’s a new app which parents can use to keep track of their children’s whereabouts. Through Family Check In, parents can determine if their kids have arrived at their scheduled destinations.

The app can pinpoint the whereabouts of a child on a location-verified map. This means parents can guarantee that their kids are at the school gym, a friend’s house, at the mall, or anywhere else they’re supposed to be. Created by Location Labs’ Safely division, they believe that this app will complement the existing behaviors of teens with currently existing apps like Foursquare.

This app is the T-Mobile version of another similar application available on both AT&T as FamilyMap and Sprint as Family Locator tool. Ever since it was launched, the app has obtained over a billion safety location check ins.

Initially, the app will be available through T-Mobile USA under the brand, T-Mobile FamilyWhere. The app will be available for free and can be downloaded from the Android Market. Other available apps under the Safely division include Drive Safe, Phone Controls usage analytics service, and Safely Social Monitor.