Quit2Heal Smartphone App in Helping Cancer Patients Quit Smoking

OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive the Quit2Heal app and are encouraged to use it frequently. During the entire 12-month follow-up period, the app will remain fully available anytime study participants wish to use it. ARM II: Patients receive the QuitGuide app and are encouraged to use it frequently. During the entire 12-month follow-up period, the app will remain fully available anytime study participants wish to use it. After randomization, patients are followed up at 3, 6, and 12 months.