RecruitingBehavioural interventionMindfulness-Based Ecological Momentary Intervention for Opioid Use Disorder and Chronic PainThe goal of this clinical trial is to evaluate whether a smartphone app-based ecological momentary intervention called Mindful Journey, which teaches mindfulness skills, can support adults in recovery from both opioid use disorder and chronic pain. The primary objective of this pilot study is to assess the feasibility and acceptability of Mindful Journey in this population.