Have you heard about this apple application..?

"Circle of 6"

Circle of 6 is an iPhone app for college-aged students and their friends to stay close, stay safe, and prevent violence before it happens.

We believe that staying connected to a small group of people is critical to keeping you and your friends informed and safe. Circle of 6 is a mobile app that makes it quick and easy to reach your circle and let them know where you are, and what you need. It's a fast, easy-to-use and secure way to look out for each other.