THE SCIENCE
The science behind the craving off switch
Quit by Heart isn’t a black box. Our FAST & For Good Method™ is built atop peer-reviewed research — meaning our tools and tactics hold up under a real craving.
The evidence-based Fast Acting Strategic Tools help smokers defeat their biggest obstacles to quitting nicotine – and staying quit.
TWO MECHANISMS, WORKING TOGETHER
A robust framework for behavior change
Psychology and physiology each help you quit. Combined they do what neither does alone — cold turkey or alongside pharmacologicals.
The Craving Kill Switch is a Fast Acting Strategic Tool: a brief guided protocol that rebalances the neurotransmitters, peptides and hormones at the heart of cravings and withdrawal symptoms to restore homeostasis — the state in which cravings and withdrawal symptoms subside.
THE RESEARCH BEHIND IT
Built on decades of published behavior science
Grounded in behavior-change science recognized by the U.S. National Cancer Institute for smoking cessation.
McWilliams et al., 2019, Health Psychology.
Mutter, Oettingen & Gollwitzer, 2020, Psychology & Health.
Taylor, Ussher & Faulkner, 2007, Addiction.
19% vs 2%
In one randomized trial, smokers who were provided specific if-then plan options quit at 19% — versus 2% in the next-best control. Single trials run higher than pooled averages; across 12 studies the effect settles at roughly double the control rate. Either way, the gain comes from weakening the smoking habit itself, not just the craving.
Armitage, 2008 & 2016; McWilliams et al., 2019, Health Psychology.
Every feature must clear three standards
Be ethical
We win when you quit and move on — not when you stay attached to an app.
Science + data driven
Every method is rooted in published evidence and sharpened by real outcomes.
Easy for the average smoker
If it isn’t simple enough for a hard day, it isn’t finished.
What we claim — and what we don't
Quit by Heart combines evidence-based methods in its suite of tools to employ the moment triggers strike. The studies cited are on the underlying techniques, not a claim of a specific quit rate, and are not a substitute for personal medical advice. Individual results vary.
References
Armitage, C. J. (2008). A volitional help sheet to encourage smoking cessation: A randomized exploratory trial. Health Psychology, 27(5), 557–566.
Armitage, C. J. (2016). Evidence that implementation intentions can overcome the effects of smoking habits. Health Psychology, 35(9), 935–943.
Gollwitzer, P. M., & Sheeran, P. (2006). Implementation intentions and goal achievement: A meta-analysis of effects and processes. Advances in Experimental Social Psychology, 38, 69–119.
Gollwitzer, P. M. (1999). Implementation intentions: Strong effects of simple plans. American Psychologist, 54(7), 493–503.
McWilliams, L., Bellhouse, S., Yorke, J., Lloyd, K., & Armitage, C. J. (2019). Beyond ‘planning’: A meta-analysis of implementation intentions to support smoking cessation. Health Psychology, 38(12), 1059–1068.
Mutter, E. R., Oettingen, G., & Gollwitzer, P. M. (2020). An online randomised controlled trial of mental contrasting with implementation intentions as a smoking behavior change intervention. Psychology & Health, 35(3), 318–345.
Oettingen, G. (2012). Future thought and behavior change. European Review of Social Psychology, 23(1), 1–63.
Taylor, A. H., Ussher, M. H., & Faulkner, G. (2007). The acute effects of exercise on cigarette cravings, withdrawal symptoms, affect and smoking behavior: a systematic review. Addiction, 102(4), 534–543.
Evidence-based, and built for real life
Quit smoking or vaping with a method grounded in behavior science — and a craving kill switch in your pocket.