Mental health applications for mobile devices are tools designed to support individuals in managing their mental health and wellness. The CPRP Exam Blueprint (Domain VII: Supporting Health & Wellness) emphasizes promoting self-management strategies to enhance wellness and recovery (Task VII.A.3: "Facilitate wellness coaching to support physical and emotional health"). Option D (assist individuals with illness self-management) aligns with this, as mental health apps typically provide features like mood tracking, coping skill exercises, medication reminders, and psychoeducation, empowering individuals to actively manage their conditions in collaboration with professional support.

Option A (enable self-diagnosis) is incorrect, as apps are not designed or recommended for diagnosis, which requires professional expertise. Option B (preferred by most providers) is inaccurate, as provider preferences vary, and apps are supplementary tools, not replacements. Option C (reduce the need for professional interventions) overstates the role of apps, which complement rather than replace professional care. The PRA Study Guide highlights self-management tools, including apps, as key to wellness, supporting Option D.