1. effectiveness of an interactive, personalized smart phone and web based safety application ("App") intervention in Maryland and Oregon with: 1) college women (age 18-24) who experience IPV and 2) friends (age 18-24) of women experiencing IPV. The safety decision App allows the user to enter information on: a) relationship health; b) safety priorities; and c) severity of violence/danger in relationship. The App then uses the information to provide the user with a personalized safety planning information and resources; and