"Testing the mHealth App Intervention for Nondaily Smokers SiS4"

"Participants randomized to the treatment condition will use the Smiling instead of Smoking (SiS) smartphone app. This app delivers and guides participants through two types of content to help them during their quit attempt: (1) positive psychology content (i.e., happiness habit-building exercises, happiness boost activity, and science-based information on the relevance of positive psychology activities) designed to help nondaily smokers maintain positive affect while they go through the process of smoking cessation; and (2) traditional behavioral smoking cessation content to guide their quit process based on US Clinical Practice Guidelines."

"Participants randomized to the control condition will use the National Cancer Institute (NCI)'s QuitGuide (QG) smartphone app. The QuitGuide app follows the US Clinical Practice Guidelines. The app is freely available on NCI's Smokefree.gov website, which is a recommended resource for treating smokers in the healthcare setting. The QuitGuide app is frequently used as a comparison app in smartphone app smoking cessation studies. It asks participants to set a quit day, track their mood and cravings, and log their cigarettes. It provides app users with guidance on quitting (i.e., Learn to Quit information), offers strategies to counter smoking triggers, and allows users to set reminders to stay smoke free (time and location based)."