HMN 2026: How Smartphone apps triple long-term quit rates compared to minimal smoking cessation support

Smartphone apps—particularly those based on psychological theories—are three times as effective as no/minimal support at helping people who smoke stub out their tobacco use long term, suggests a pooled data analysis of the available evidence, published in the online journal BMJ Evidence Based Medicine.

If high quality clinical trials can confirm lasting benefits and key features, these apps could become a cornerstone of global tobacco control efforts, suggest the researchers.

Smartphone apps offer an accessible and versatile approach to smoking cessation efforts. But the current body of evidence has been hindered by small study numbers and app obsolescence, say the researchers.

Most currently available smoking cessation apps adopt either traditional behavioral frameworks, focused on directly modifying smoking behavior, or psychological-behavioral theories, targeting cognition, emotion regulation, and motivation through techniques such as cognitive behavioral therapy (CBT), acceptance and commitment therapy, and mindfulness, explain the researchers.

But it’s not clear which approach might be more effective for improving sustained abstinence.

Study methods and evidence assessment

To strengthen and update the evidence base, the researchers assessed the effectiveness of smartphone apps, when used alone or when combined with traditional approaches, such as nicotine replacement therapy and counseling, for helping people quit smoking and stay away from tobacco long term (six months continuously).

They trawled research databases for relevant randomized controlled trials published up to August 2025 of people aged at least 15 who planned to quit smoking. Comparisons included: no intervention; minimal smoking cessation support; traditional interventions; and apps based on traditional behavioral interventions.

Certainty of the evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.

Key findings on app effectiveness

The data from a total of 31 eligible studies, involving 12,802 participants, were pooled. Low certainty evidence from four studies (1,402 participants) suggests that smartphone apps used alone may nearly triple the rate of six?month continuous abstinence, increasing the number of ‘abstainers’ by 40 in every 1,000, compared with no or minimal smoking cessation support.

When combined with traditional interventions, these apps may nearly double six?month continuous abstinence compared with traditional interventions alone (four studies involving 2,163 participants; low certainty evidence).

And based on data from three studies (1,502 participants; low certainty evidence), these apps plus pharmacotherapy may improve six?month continuous abstinence by 77% compared with pharmacotherapy alone.

High certainty evidence indicated that apps based on psychological behavioral theories significantly increased abstinence in the short term at three months (69%; two studies, 2,565 participants) and in the long term at six months (36%; four studies, 3,258 participants) compared with apps based on traditional behavioral interventions.

Implications and future research needs

“Smartphone apps can deliver intensive, interactive and real?time behavioral support, exceeding the effect of brief advice. A clear dose–response relationship exists between counseling intensity and quit success, and apps help meet this need while bypassing barriers such as limited clinic capacity, staff time, and declining use of telephone quitlines,” point out the researchers.

“Consequently, smartphone apps represent a scalable alternative or adjunct to traditional cessation services, particularly in resource?limited settings,” they suggest.

But the certainty of the evidence remains low due to limited sample sizes and methodological limitations, including design variations in the apps and their use, caution the researchers, adding that the findings “should be viewed as generating a hypothesis for future research rather than as a definitive conclusion.”

They conclude, “Should future evidence confirm lasting benefits and pinpoint key features, rigorously validated apps could become a cornerstone of global tobacco control efforts.”

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