Smart Olfaction App to Reduce Relapse

Inclusion Criteria: * At least 18 years of age * Ability to read, understand and speak English * Currently smoke at least 5 cigarettes daily for one year or longer * Do not currently smoke marijuana or currently smoke marijuana but willing to not smoke during the duration of the study * Did not use electronic cigarette or vaping device in the past 90 days * Have an active smartphone that is Apple or Android based * Have phone service including a data plan * Interested in downloading the study app onto their personal phone * Motivated to quit smoking * English literacy of 7th grade or higher, as indicated by a score of ≥ 4 on the Rapid Estimate of Adult Literacy in Medicine-Short Form (REALM-SF) * Biochemical verification of smoking status * Proof of smoking status at enrollment via photo of cigarettes * Presents a photo ID that matches the information on screener survey * Willing and able to complete study procedures * Willing to use NRT and quit smoking for 14 days (Phase I) or willing to use NRT and quit smoking for 13 weeks (Phase II) Exclusion Criteria: * Olfactory dysfunction including inability to smell, a very weak or distorted sense of smell, or sensitivity to odors * Report any allergies or negative reactions to odors/fragranced products * Being pregnant, breastfeeding, or planning to become pregnant within the next month * Report hypertension that is not under control * Have had a heart attack within the past two weeks * Those who participated in Phase I will not be eligible to participate in Phase II * Have a smartphone that is not compatible with the Insight mHealth platform * Report using electronic cigarette or vaping device in the past 90 days