The Food and Drug Administration (FDA) has permitted marketing of the first mobile app to help treat substance use disorders (SUD). The app is designed to be prescribed by a doctor and used along with counseling, CNBC reports. The Reset device delivers cognitive behavioral therapy to patients to teach skills that aid in the treatment of substance use disorders, the company says. These skills are "intended to increase abstinence from substance abuse and increase retention in outpatient therapy programs," according to a news release from the FDA. The agency said the Reset device is indicated as a prescription-only adjunct treatment for patients with SUD who are not currently on opioid replacement therapy, who do not abuse alcohol solely, or whose primary substance of abuse is not opioids.