A four-week feasibility trial of the CC app with a sample individuals on probation and parole with SUDs who are receiving outpatient substance use disorder treatment will be recruited and use the app for 12 weeks during community treatment. Study participants will complete brief questionnaires at study initiation (focusing on background characteristics, treatment history, app expectations) and after the 4-week feasibility trial (focusing on their experiences with the app, usability, satisfaction, and suggestions for improvement).
