Does gamification help you quit a habit?
What the reviews and trials say about games and habit change, which game elements have evidence behind them, and when a game works against a quit. We build a game-styled quit app, so we start there.
Este artigo está em inglês.
Gamification helps with some health habits, going by the research, but whether it helps you quit one is much less clear. At ExHale Labs we build ExHale, a game-styled quit vaping app, so we read this research closely. Below is what the reviews and trials show, element by element, and where the evidence is thin.
What the reviews show#
The broadest review we could find is a 2016 systematic review of gamification for health and wellbeing. Its authors identified 19 papers with empirical evidence and concluded that results were clear for health-related behaviours but mixed for cognitive outcomes.1 The evidence was mostly moderate or lower quality, and the review's own warning was that findings "need to be interpreted with caution", partly because few studies compared a gamified intervention with the same intervention without the game.1
The most specific pooled figure is for physical activity. A 2022 meta-analysis of 16 randomised trials with 2,407 participants found a small to medium effect on physical activity, Hedges g of 0.42 (95% CI 0.14 to 0.69). The effect was weaker at follow-up, averaging 14 weeks after the intervention ended, with g of 0.15. The authors measured effects on physical activity behaviour, so it doesn't tell us much about stopping something.2
Smoking apps: engagement up, abstinence unclear#
Smoking is the closest thing we found to vaping in game trials. A 2025 meta-analysis pooled 15 randomised trials with 5,075 participants and reported a significant pooled effect of gamified interventions on abstinence. The strongest effects were in the first six months, and it reported a smaller effect beyond six months.3 The same paper names heterogeneity in follow-up periods and reliance on some self-reported outcomes as limitations.
The single trial we'd most want you to read is less rosy. In 2024, adults who smoked and planned to quit within a week were randomised to an established smoking app, with or without a game module added. The game group had more app engagement, including more days with a session, but self-reported and verified abstinence at 8 weeks did not significantly differ by group. The authors wrote that further refinements to the game design may clarify whether it increases abstinence.4 The trial randomised 500 people and followed them for 8 weeks. That is a short follow-up for a habit.
Game elements, mapped to what the evidence says#
The table maps each common element to the behaviour it is meant to change. The "technique" column is our reading of the mechanism, not a formal coding scheme. The evidence column says what we could find. Where it says "not isolated", no trial we read tested that element on its own, so the answer is unknown rather than negative.
| Game element | Technique it maps to (our reading) | What the evidence says | The catch |
|---|---|---|---|
| Streaks | Self-monitoring and feedback on a run of days | Not isolated. The 2024 trial's game bundled several mechanics, so it can't separate streaks out. | One slip ends the run, which can push people to hide a slip instead of logging it. |
| Points | Rewards for the behaviour | In a 1999 meta-analysis of experiments, expected and tangible rewards reduced free-choice motivation, while positive feedback increased it.5 | Points can become the goal, and the quit can drop behind them. |
| Levels | Feedback on progress over time | Not isolated in the trials we read. | Levels can reward using the app more than cutting down. |
| Quests | Goal setting and planned actions | Not isolated in the trials we read. The 2024 trial's game is the closest example, and its abstinence result was not significant. | A quest that asks for app time can add to the time spent on the habit. |
| Leaderboards | Social comparison | Not isolated in the reviews we read. | People at the bottom can feel worse, and a public slip is harder to log. |
| A character to look after | Identity and a reason to act (our reading) | Not isolated. We found no trial of a companion character for quitting. | If the character suffers when you vape, it can add guilt, and some studies link stronger guilt after a slip to relapse. |
| Social features | Social support and accountability | Not isolated in the games trials. Support from people you know is covered in our friends guide. | A group can add pressure as well as support. |
Read the table as a list of questions, not answers. The one element with a direct pooled result is the game as a whole, and even that is a bundle. We don't know which part of a bundle does the work.
When games backfire#
Three ways a game can work against a quit are worth watching for. None of them has a number attached in the reviews we read, so treat them as hypotheses to check on yourself, not findings.
- Overjustification. When an activity you already enjoy starts to come with a reward, the reward can crowd out the enjoyment. The 1999 meta-analysis found this for expected and tangible rewards in experiments on free choice.5 A quit app is a different case, since the habit you're dropping may not be one you enjoy. But if you start using the app to chase points, the points become the habit.
- Streak anxiety. A counter that resets is a counter that can be hidden. The risk is that a slip gets treated as a loss to protect, not as information to log. We'd expect this to matter most for people who already feel guilty after a slip, but we haven't seen it measured in a quit trial.
- Novelty fade. Game features often lose their pull after the first few weeks. The reviews flag weaker effects at longer follow-up, and the physical activity review found that the long-term effect was weaker than the short-term one. That is consistent with novelty fade, but it is not proof of it.
The reviews also say something plainer: follow-up varies a lot between trials, and few studies compare the game version with the same app without the game. Until that comparison is common, the best guess is that games help people use an app more, and the link to abstinence is still open.
How we built ExHale around this research#
We built ExHale with the risks above in view. The 2024 trial found more engagement with the game but no clear difference in abstinence, so in ExHale the game sits on top of a real plan: a short quiz builds a step-down plan, with a calibration week and then weekly step-downs that adapt to the puffs and cravings you log. For streak anxiety, there are streak freezes and earn-back repairs, and a slip is something you log, not a reason to start over, with bounce-back quests as the road back. Reddington, your pixel quit buddy, levels up while you cut down or stop, and when a craving hits you can fight it in a quick turn-based battle instead of reaching for your vape. For support from people you know, the quit crew lets you ask up to three friends before a puff, and they answer Go ahead, Hold on 10 or Breathe with me.
What to do with this#
If you're choosing a quit app, look at which outcome the trial measured. Engagement, retention and abstinence are different results, and a study can improve one without moving the others. Look for a comparison with the same app without the game, and for a follow-up longer than a few weeks. If you can't find either, the game is a feature to try, not a reason to pick the app.
Whatever you use, count the thing you're trying to change. Our guide to tracking vape puffs explains how to set that up, and quitting vaping with friends covers the social side without the leaderboard. For the full plan, the practical guide to quitting vaping is the place to start.
Questions about gamification and quitting#
Does gamification help people quit smoking?
The evidence is mixed in a way that matters. A 2025 meta-analysis of 15 randomised trials with 5,075 people found a significant pooled effect on abstinence, strongest in the first six months. But a 2024 randomised trial of a game module added to a smoking app raised engagement without a clear difference in abstinence at 8 weeks. Both are smoking studies, and we found no trial of a game for vaping.
Does gamification help with physical activity?
This is where the evidence is strongest. A 2022 meta-analysis of 16 randomised trials with 2,407 participants found a small to medium effect on physical activity, Hedges g of 0.42. The effect was weaker at follow-up, averaging 14 weeks after the programme ended, with a g of 0.15. A quit habit is not physical activity, so treat this as a sign of what games can do, not a promise about quitting.
Can points, streaks or rewards make a habit worse?
They can, in some settings. A 1999 meta-analysis of 128 experiments found that expected and tangible rewards undermined free-choice motivation, while positive feedback helped. Whether that carries over to a quit app is not something the trials we read tested directly, so treat it as a risk to watch rather than a proven effect.
Is a game-styled quit app better than a plain one?
Nobody has shown that yet. Few trials compare a gamified version with the same app without the game. The 2024 trial found more app use with the game, but the abstinence results did not clearly differ, and its authors said that further refinements to the game design may clarify whether it increases abstinence. In ExHale, we pair the game with a step-down plan built from a short quiz, so the game sits on top of a real plan rather than standing in for one.
How do I tell if a quit app's game features are working for me?
Use the app's own numbers and your own. Count puffs or cravings for a week before you start, then for two weeks after, and compare. If you're opening the app more but vaping no less, the game is holding your attention without changing the habit. Bring that data to whoever is helping you quit.
References#
- Johnson D, Deterding S, Kuhn KA, Staneva A, Stoyanov S, Hides L. Gamification for health and wellbeing: a systematic review of the literature. Internet Interventions, 2016;6:89-106. pmc.ncbi.nlm.nih.gov/articles/PMC6096297
- Mazeas A, Duclos M, Pereira B, Chalabaev A. Evaluating the effectiveness of gamification on physical activity: systematic review and meta-analysis of randomized controlled trials. Journal of Medical Internet Research, 2022;24(1):e26779. pubmed.ncbi.nlm.nih.gov/34982715/
- Imran Ho DSH, Jabir F, Sallahuddin SN, et al. The impact of gamification on smoking cessation: a systematic review and meta-analysis. Tobacco Induced Diseases, 2025;23:10. pmc.ncbi.nlm.nih.gov/articles/PMC12199787/
- White JS, Toussaert S, Raiff BR, et al. Evaluating the impact of a game on user engagement within a leading smartphone app for smoking cessation: randomized controlled trial. Journal of Medical Internet Research, 2024;26:e57839. ClinicalTrials.gov NCT05227027. pubmed.ncbi.nlm.nih.gov/39475840/
- Deci EL, Koestner R, Ryan RM. A meta-analytic review of experiments examining the effects of extrinsic rewards on intrinsic motivation. Psychological Bulletin, 1999;125(6):627-668. pubmed.ncbi.nlm.nih.gov/10589297/
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