By 2030, prostate cancer will be the most commonly diagnosed cancer in North America. To mitigate this impending challenge, comprehensive support mechanisms for disease and treatment-specific changes in health and wellbeing must be proactively designed and thoughtfully implemented for streamlined survivorship care. Mobile health applications have been lauded as a promising complement to current outpatient treatment and monitoring strategies, but have not yet been widely used to support prostate cancer survivorship needs. A realist evaluation is needed to examine the impact of such applications on the prostate cancer survivorship experience.