Inclusion Criteria:  valid residential address to mail study materials earn a score ≥ 4 on the Rapid Estimate of Adult Literacy in Medicine-Short Form (REALM-SF) indicating > 6th grade English literacy level (required to complete EMAs; at least 88% of all individuals screened for our EMA studies have met this inclusion criterion) willingness to quit smoking 7 days after the randomization phone call currently smoke ≥ 10 cigarettes per day willing and medically eligible to use combination NRT agree to complete daily EMAs and thrice-weekly CO tests on a study provided or personal smartphone agree to complete the 5-week post-quit follow-up assessment (i.e., smartphone based quantitative survey and qualitative interview via phone call).  Exclusion Criteria:  Individuals who score ≥ 8 on the Cognitive Impairment Test, which indicates severe cognitive impairment, Pregnant or intend to become pregnant during the study period.