Family-Based Financial Incentives Intervention for Smoking Cessation

Index Participant Inclusion Criteria: * Alaska Native/American Indian (ANAI) person (based on self-reported race) and reside in Alaska. * Age ≥18 years. * Self-report smoking in the past 7 days, biochemically verified with saliva cotinine ≥ 30 ng/mL (positive result based on at-home saliva swab test provided by study team). * Smoked ≥ 3 cigarettes per day over the past 3 months. * Considering or willing to make a quit attempt. * Have or will nominate one adult family member to enroll with them. * Own or have access to a mobile phone or tablet with Internet and text messaging capabilities, or will be loaned an iPad for the study duration * Willing to upload photos of self during completion of smoking status tests. * Willing to complete and sign an Internal Revenue Service (IRS) W-9 tax identification form if they wish to receive payments on the study. * Willing to provide written informed consent and participate in study-related tests and procedures. Index Participant Exclusion Criteria: * Already enrolled in the study with another family member. * Participated in a prior study phase. Family Member Participant Inclusion Criteria (regardless of smoking status or residence with the index participant): * Age ≥18 years. * Defined as family and nominated by the index participant, or have an ANAI family member who is ≥18 years and smokes that they would like to support in quitting. * Own or have access to a mobile phone or tablet with Internet and text messaging capabilities, o…