Randomized pilot study of a device (smartphone app) that poses non-significant risk to participants and is exempt from Investigational Device Exemption regulations [21 Code of Federal Regulations 812.2(c)](streamdown:incomplete-link)

To test the feasibility/acceptability and efficacy of a minimum viable product (MVP) of a smartphone app for patients with alcohol use disorder who are in active treatment and recovery to perform self-tracking of their recovery behavior (e.g., abstinence) and focus on their motivation to maintain their desired health behaviors (i.e., abstinence).

Inclusion Criteria:

Participants in the pilot study will be 60 new intakes to Gosnold's outpatient Substance Use Disorder (SUD) program who:

• are >18 years old;
• meet DSM-5 criteria for current (past year) alcohol use disorder, at least moderate severity;
• identify alcohol as the primary drug problem;
• Currently use alcohol (past 7 days) or have been in treatment 14 days or less and used alcohol within 7 days of treatment entry;
• have and use an Android or iOS smartphone with acceptable
• capability;
• are willing to participate in home testing and use of the smartphone,
• speak and read the English language adequately to understand smartphone commands and responses and
• are willing to be randomly assigned to receive treatment with or without the smartphone app as an added feature.

Exclusion Criteria:

• Participants must not currently be suicidal or actively psychotic, by clinician judgement.

We intend to make participant data available by request as long as it is unidentifiable.