Smartphone Services for Stimulant Use Disorder

We are trying to find out whether one version of a smartphone app is better than another in helping people who have stimulant use disorder. You will not be able to choose which app or app-based services you receive. You will be assigned to one of these two sets of smartphone-based services randomly - like by a flip of a coin. You have a 50/50 chance of receiving either version of the app.

You will need to agree to let us speak with your healthcare provider so that we can check this information about you before you start the study. We will also ask you to give us permission to look at how you use your health insurance. We want to learn if you are having visits to a clinic, doctors, Emergency Rooms, or hospitals. This is to learn if people get better and then use fewer healthcare services. We will check this information four times during the study. We will be able to see what treatments you have used, but we won't tell your insurance company that you are in this study. Also, we won't charge anything to your insurance.

Inclusion criteria

• Adults who are at least 18 years old, speak/read English, have a smartphone, and who meet criteria for Stimulant Use Disorder, active or early remission. If being discharged to outpatient or intensive outpatient care, the patient is eligible.

Exclusion criteria

• Unwilling to authorize communication with any treatment provider(s), requiring acute detoxification from alcohol or opioids or residential or hospital treatment, or other obstacle to longitudinal participation in the study.
• Currently pregnant