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.

Quit Genius - Quit smoking with personalised and proven therapy 🚭

Sobriety Tracker Clock - Sobriety Tracker Clock is a well-known clean and sober day counter app.

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.

Quitbit - A smart lighter and app to help smokers quit (pre-order)