This study is crucial as it explores the effectiveness of app-based incentives for older adults, a demographic often overlooked in addiction treatment. The findings could reshape product development and marketing strategies for pharma companies targeting substance use disorders, particularly in the digital therapeutic space. Regulatory context from FDA (FDA Approves First Treatment Shown to Reduce the Risk of Acute Pancreatitis in Adults with Severe Hypertriglyceridemia) supports the near-term read. Assessment grounded in 19 ranked evidence items (11 high-relevance).