Feasibility of Technology-Based SSIP in Prostate Cancer Patients

The goal of this pilot study is to assess the perceived usability of a smartphone application called WINGS targeting psychosocial distress and well-being in prostate cancer patients and their social network. The main questions it aims to answer are: * How do prostate cancer patients and their social network rate the usability of the technology-based social-support intervention program smartphone application? * Do symptoms of prostate cancer patients improve after using the WINGS smartphone application? * Does the burden of prostate cancer patients social network decrease after using the WINGS smartphone application? Participants will be asked to use the WINGS smartphone application over the period of eight to twelve weeks and fill in questionnaires before, during, and after this time.