Background and Rationale: About one in five 12-18 year-olds in the U.S. are obese. It has been theorized that overeating in some individuals may have addictive qualities, and that specific foods may have addictive potential for these people. But few weight management interventions have tested therapeutic techniques founded in addiction medicine principles to date. Since mHealth interventions have been successful in the treatment of other addictions, the investigators hypothesize that mHealth technologies which are rooted in behavioral theory could be effective to promote weight loss in some individuals.