Smoke Free - Virtual "Quit Smoking Buddy" in your pocket
NACC - NACC is a cross-platform application which gives you a timer like an interface that provides different modules for calculating the sobriety of the user.
Lassie Smoke - The modern way to quit smoking
I Am Sober - I Am Sober is an app which comes with the different module, and it is one of the most celebrity application used in America.
Quitbit - A smart lighter and app to help smokers quit (pre-order)
Kwit - Kwit is a cross-platform application with the function and features to help you quit smoking.