BACKGROUND AND AIMS: Online dating applications (ODAs) are gaining popularity, raising concerns about their potential addictive effects on users’ health. The main objective of this study was to investigate the association between problematic ODA use and mental health, substance use, and sexual behavior outcomes in men-who-have-sex-with-men (MSM). To achieve this, we first validated a German version of the Problematic ODA Use Scale (PODAUS), which assesses problematic ODA usage patterns.
