Real-world Longitudinal Follow-up Study of a Digital Health Application in Erectile Dysfunction

The goal of this observational study is to assess the long-term effectiveness of a digital health application for treating erectile dysfunction in men aged 18 and older. The main questions it aims to answer are: * Will participants maintain an improvement of their erectile function, that means maintain an improvement of at least 3 points in the IIEF-5 score at 3 months post-therapy? * How does the application affect overall health status and disease-related quality of life? Participants will: * Complete validated questionnaires (IIEF-5, PGI-I, QOL-Med) to track erectile function, overall health status, and quality of life at up to two follow-up points after using the app with a 3-month self-management program combining cardiovascular training, pelvic floor exercises, psychological support, and educational content. * Provide information on demographics, risk factors, and other relevant health characteristics for subgroup analysis.