The study is designed to evaluate the efficacy of a cigarette reduction intervention using a novel device called the Quitbit, a digital lighter paired with a smartphone mobile application, to enhance self-regulatory techniques for reducing cigarettes smoked per day toward cessation.

Inclusion Criteria:

• 18 years of age
• cigarette smoker
• wanting to quit in the next 30 days
• preference to quit gradually (vs. abruptly) or having no preference
• access to an iPhone (iOS only)
• completion of a run-in period

Exclusion Criteria:

• no major change in number of cigarettes per day in the past month (+/- 20%)
• no major health diagnoses that could impact study attrition