An Innovative Conversational Agent (Quitbot) for Smoking Cessation

Inclusion Criteria: * Age 18 or older * Smokes at least one cigarette a day for the past 12 months * Wants to quit cigarette smoking within the next 30 days (consistent with text messaging intervention trials) * If concurrently using any other nicotine or tobacco products, wants to quit using them within the next 30 days * Interested in learning skills to quit smoking * Willing to be randomly assigned to either intervention * Resides in United States (US) and will continue to reside in the US for the next 12 months * Has at least daily access to their own smartphone * Has text messaging on their smartphone and knows how to download a smartphone application * Willing and able to read in English, and * Not using other smoking cessation interventions (This eligibility requirement helps ensure results are due to the treatments we recommend rather than those that participants are doing on their own.) Exclusion Criteria: * The reverse of the inclusion criteria