 Prostate cancer is a commonly diagnosed cancer, and is the second leading cause of cancer deaths among men in the U.S. The subgroup of men with advanced prostate cancer is particularly vulnerable to difficult choices for treatment because of the nature of their disease and having limited options. This study will test the use of an innovative Registered Nurse-Community Patient Navigator team delivered interactive mHealth decision aid for patients with advanced prostate cancer to help facilitate informed shared decisions about anti-cancer treatment that affects their quality of life. 