Here is a mobile phone app parents and law enforcement can really support.

Circle of 6 is a safety app that won the White House “Apps Against Abuse” Technology challenge. The challenge was launched by Vice President Joe Biden and Health and Human Services Secretary Kathleen Sebelius.

Users identify six contacts they want in their close circle and, with the touch of a button, they are able to give their location and ask for help from that trusted six. The app, co-created by women’s rights activist Nancy Schwartzman, was designed to prevent sexual assault. App functions include the ability to ask for a ride home, ask for an interruption, or get advice on healthy relationships.

The app is marketed toward young adults and has received coverage on MTV, in Marie Claire, Wired, Cosmopolitan, The Frisky, and more. It has a Facebook campaign as well.

Dating violence and sexual assault are widespread problems among young women, with nearly one in five reporting assault while in college.