RecruitingBehavioural interventionMobile Platform for Optimizing Wellness and Engagement in RecoveryThis pilot study addresses the urgent public health crisis of co-occurring opioid and alcohol use disorders (OUD-AUD), leading causes of mortality in the United States, by testing a scalable digital contingency management (CM) treatment among Medicaid beneficiaries. The study aims to evaluate the feasibility and acceptability of digital CM for OUD-AUD recovery, while also planning for broader implementation.