Development and Open Trial of a Technology-Enhanced Family Intervention for Adolescents at Risk for Mood Disorders

•We created a mobile app to enhance family therapy for adolescents at risk for mood disorders and their parents.•In an open trial of technology-enhanced family-focused therapy, adolescents and parents engaged in app-based mood tracking and communication skill exercises for up to 27 weeks.•Participants reported improvements over 27 weeks in depression and parental criticism.•Mobile apps may increase engagement in family therapy among adolescents at risk for mood disorders.