Study Design: New EMPOWER patients complete the Yale Food Addiction Study for Children (YFAS-c), a validated 25 item instrument designed to identify addictive behaviors related to food. Patients with more than two positive criteria on the YFAS-C will be recruited for participation in the W8Loss2Go study. Enrolled subjects and their parents will complete the Eating Behaviors Questionnaire (EBQ-Merlo 2009), and then receive the app, an iPhone 5S (if needed), a wireless body weight scale, and a wireless food scale. Over the next 6 months, subjects will proceed through all parts of the app program (problem food withdrawal, snacking control and withdrawal from excessive portions) and receive weekly phone calls from the study coordinator, who will be monitoring app usage and providing motivation. During the six months study period, subjects will return to the EMPOWER clinic for a three month weight check and face-to face meeting with their mentor. After the study period, participants will again complete the EBQ, and be offered continued enrollment in the EMPOWER clinic or continued home use of the mHealth technology Study Population: Twenty obese 12-18 year old adolescents will be recruited from new patients referred to the CHLA EMPOWER Clinic.