Additional Study Information: This pilot study is designed to examine the effect of a novel type of lifestyle intervention, administered via a smartphone app, on weight loss and improvement of metabolic health in individuals with overweight and/or obesity. A mobile application will be used to document eating behavior through photos. In addition, participants will receive personalized push notifications on their phones to encourage adherence to the intervention, as well as health and nutrition tips. Participants will be asked to complete in-person ~1h study visits before and at completion of the study.Please be advised that there is no monetary compensation offered for this study.