Inclusion Criteria:  BMI ≥ 25 kg/m2 smoked ≥ 5 cigarettes/day during the past year self-reported motivation to quit smoking self-reported desire to prevent or minimize weight gain during smoking cessation ability to understand informed consent access to a smartphone or tablet  Exclusion Criteria:  current smoking cessation or weight loss treatment/medication more than 1 day/week use of tobacco or nicotine from sources other than cigarettes (other than non-daily use of e-cigarettes in addition to combustible cigarettes) weight loss of 20 lbs or more within the past 6 months self-reported diagnosis or treatment for an alcohol or substance use disorder within the past 6 months (with the exception of maintenance therapies) endorsing recent symptomology suggestive of an eating disorder, an alcohol or substance use disorder, severe depression, or suicidal ideation self-reported diagnosis or treatment or evidence of an eating disorder or severe psychiatric disorder (e.g., schizophrenia or bipolar disorder) not stabilized on psychotropic medications current use of medications known to interact with smoking cessation clinically significant medical condition