A couple of years ago I shared some information about online courses to help raise awareness of child abuse. The same folks who designed those have released an iPhone app called Reduce the Risk:
The free app Reduce the Risk shows how to recognise the signs of abuse either in your own relationship or in that of someone close to you, how to keep safe while living with an abuser and what to do once you’ve left. It also provides contact details for local and national support agencies.
You can learn more about the app, from the video on their site.