LifeProx shows those contacts on a map too! One of the awesome features of LifeProx is our ability to show pre-existing phone contacts who have a valid address within LifeProx itself. If you try to edit the phone contact in LifeProx, the app will automatically open your phone's address book.
Phone contacts are displayed in LifeProx just like Tags that were created by LifeProx.
To fully utilize LifeProx, don't forget to create your Tags from within LifeProx itself.