Quit: Smoke-Free Tracker

Quit does one job: keep the clock running.

THE CLOCK Days, hours, minutes and seconds since your last cigarette, live on your home screen and lock screen. Next to it: money saved, cigarettes not smoked, and hours of life regained.

YOUR BODY, RECOVERING A 16-step recovery timeline, from blood pressure at 20 minutes to lung function at a year and beyond, sourced from the CDC, NHS, and American Lung Association. Watch each milestone unlock.

CRAVING SOS Cravings pass in about five minutes. Hit SOS for a five-minute countdown with box breathing and get through it.

QUIT WITH A BUDDY Swap a six-character code with a friend. See each other's clock, send a jab when they need it, and get a push the moment either of you slips.

TOUGH LOVE, ON SCHEDULE A blunt daily reminder and a push at every milestone. Fair warning: the app swears.

HONEST SLIPS Smoked? Log it. The clock resets, the slip is counted, and your buddy hears about it. Then you start again.

WIDGETS Small and medium home screen widgets. Circular, rectangular and inline lock screen widgets.

No account, no ads, no tracking. Your data stays on your phone and in iCloud.

Quit is not a medical device and doesn't replace advice from a doctor.