Smartphones for Opiate Addiction Recovery

Inclusion Criteria: Patients: * Meet DSM-5 criteria for opioid-use disorder (heroin and/or prescription opioids); * Have entered, or expressed a clear intention to enter, an OUD treatment program that prescribes either methadone or buprenorphine * Any gender; * 18 years of age and older; * Have used opioids other than as specifically prescribed within thirty days prior to consent; * In good-enough general health; * Capacity to provide written informed consent as assessed by our Subject Comprehension Assessment Tool(subjects lacking the ability to consent will not be enrolled) ; * Able to speak English sufficiently to understand the study procedures and provide written informed consent to participate in the study. Study-Physician Participants. * Licensed MD employed by the respective site, or at a clinical partner of the respective site, where they will act as participants and be part of the treatment team * Currently practicing in the treatment of OUD with either Buprenorphine or Methadone; * Able to speak, read, and write English fluently and to provide informed consent in English Clinician Participants. * Licensed MSW, NP, or MD; who are not part of any treatment team within the study and may be employees of their respective sites or other treatment facilities. * Currently practicing in the treatment of OUD with either Buprenorphine or Methadone; * Able to speak, read, and write English fluently and to provide informed consent in English Exclusion Criteria: Patients: * Serious medical, psychiatric or non-opioid substance use disorder that, in the opinion of a study physician, would make study participation hazardous to the participant or compromise study findings or would prevent the participant from completing the study. Examples include: (a) Disabling or terminal medical illness (e.g., uncompensated heart failure, cirrhosis or end-stage liver disease) as assessed by medical history, review of systems, physical exam and/or laboratory assessments; * Severe, untreated or inadequately treated mental disorder (e.g., active psychosis, uncontrolled manic-depressive illness) as assessed by history and/or clinical interview; * Current severe alcohol, benzodiazepine, or other depressant or sedative hypnotic use likely to require a complicated medical detoxification (routine alcohol and sedative detoxifications may be included); * Suicidal or homicidal ideation that requires immediate attention; * Presence of pain of sufficient severity as to require ongoing pain management with opioids; * Pending legal action or other reasons that might prevent an individual from completing the study. * Pregnancy as assessed by urine pregnancy testing * Breastfeeding of infants, as assessed by self-report. * Prisoners, as defined by OHRP, are excluded from participation in the study. * Individuals receiving residential court-ordered substance abuse treatment. Study-Physician Participants. * none Clinician Participants. * none