Why Behavior Change Apps Fail to Change Behavior-Nir&Far
11 Dec 2025 · 1 min
Nir Eyal’s podcast episode (Near & Far) presents an article arguing that many behavior-change apps fail because they threaten users’ autonomy, triggering psychological reactance. Using examples and research (a French ‘but you are free’ compliance study; Meta-analysis of 42 studies; self-determination theory; examples of MyFitnessPal vs. Fitocracy/PhotoGrassy), Eyal contrasts ‘wanna’ behaviors (voluntary, social, autonomy-supporting) with ‘hafta’ behaviors (obligatory, punishing). He concludes that products change behavior more reliably when they leverage existing routines and preserve choice, making the new behavior feel like a preferable option rather than a mandate.
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Hi, I'm Nir Eyal and this is the near and Far Podcast. This podcast is about business, behavior and the brain. On this show I do a few things. I read quick articles I've written about topics shaping your behavior. I interview authors of books I enjoy, and from time to time I devote episodes to answering your questions. If you want to ask me a question, visit the podcast page on itunes, go to Ratings and Reviews and ask me a question. By leaving a review, I promise to read it and possibly include your question of future episodes. So please ask me anything now. Enjoy the episode and for more, you can always Visit me@nearandfar.com.
Why behavior change Apps Fail to Change Behavior By Nir Eyal Imagine walking into a busy mall when someone approaches you with an open hand. Would you have some coins that take the bus, please? He asks. But in this case, the person is not a panhandler. The beggar is a PhD as part of a French study, researchers wanted to know if they could influence how much money people handed to a total stranger. Using just a few specific encoded words, they discovered a technique so simple and effective it doubled the amount people gave. The turn of phrase has been shown to not only increase how much bus fare people give, but was also effective in boosting charitable donations and participation and voluntary surveys. In fact, a recent Meta analysis of 42 studies involving over 22,000 participants concluded that just a few words placed at the end of a request are a highly effective way to gain compliance, doubling the likelihood of people saying yes. What were the magic words? The researchers discovered the phrase but you are free to accept or refuse. The but you are free technique demonstrates how we are more likely to be persuaded when our ability to choose is reaffirmed. The effect was observed not only during face to face interactions, but also over email. Though the research did not directly look at how products and services might use the technique, the study provides several practical insights for how companies can influence customer behavior. Wanna and Hafta Dr. Jesse Schell of Carnegie Mellon's Entertainment Technology center studies the psychology behind why people play. In addition to being CEO of his own gaming studio, Shell has poured over decades of research to try and explain why people spend countless hours in trance playing Angry Birds or World of Warcraft while at the same time dreading doing things like their day jobs or filing taxes. At this year's Dice Summit, Shell said the difference comes down to whether the behavior is a wanna versus a hafta. The difference between things we want to do and things you have to do, according to Shell, is the difference between work and play, slavery and freedom, efficiency and pleasure. Furthermore, Shell believes maintaining a sense of autonomy is critical to enjoying an experience. Shell points to the work of Edward Deci and Richard Ryan, whose self determination theory identifies belief in one's own freedom to choose as a key requirement for sustained motivation. Unfortunately, too many well intentioned products fail because they feel like haftas things people are obligated to do as opposed to things they want to do. Shell points to neuroscience research showing that there are different channels of the brain for seeking positive consequences and avo negative consequences. When faced with haftas, our brains register them as punishments. So we take shortcuts, cheat, skip out, or in the case of many apps or websites, uninstall them or click away in order to escape the discomfort of feeling controlled. Why Choice Works so why does reminding people of their freedom choose, as demonstrated in the French bus fare study, prove so effective? The researchers believe the phrase but you are free disarms our instinctive rejection of being told what to do. If you have ever grumbled at your mother telling you to put your coat on, or felt your blood pressure rise when your boss micromanages you, you've experienced what psychologists call reactance, the hair trigger response to threats to our autonomy. However, when a request is coupled with the affirmation of the right to choose, reactance is kept at bay. It appears emancipating people from seeing a behavior as a hafta opens them to viewing it as a wanna. It appears emancipating people from seeing a behavior as a hafta opens them up to viewing it as a wanna. But can the principles of autonomy and reactance carry over into the way products change behavior and form new habits? Here are two examples to make the case that they do. But of course, you are free to make up your mind for yourself counting calories. Take, for example, establishing the habit of better nutrition, a common goal for many Americans. Searching in the Apple App Store for the word Diet returns over 3,000 apps, all promising to help users shed extra pounds. The first app in the long list is MyFitnessPal, whose iOS app is rated by over 350,000 people. When I decided I needed to lose a few pounds about a year ago, I installed the app and gave it a try. MyFitnessPal is simple enough to use. The app asks dieters to log what they eat and presents them with a calorie score based on their weight loss goal. For a few days, I stuck with the program and diligently input information about everything I ate I'd been a person who logs food with pen and paper. MyFitnessPal would have been a welcomed improvement. However, I was not a calorie tracker prior to using MyFitnessPal, and though using the app was novel at first, it soon became a drag. Keeping a food diary was not part of my daily routine and was not something I came to the app wanting to do. I wanted to lose weight, and the app was telling me how to do it, with its strict method of tracking calories in and calories out. Unfortunately, I soon found that forgetting to enter a meal made it impossible to get back on the program. The rest of my day was a nutritional wash. Soon I began to feel obligated to confess my mealtime transgressions to my phone. My fitness pal became myfitness Pain. Yes, I have chosen to install the app at first, but despite my best intentions, my motivation faded and using the app became a chore, adopting a weird new behavior. Calorie tracking, in my case, felt like a hafta, and my only choice was either to comply with the app or quit. So I quit making friends. On the other hand, Fitocracy, another health app, approaches behavior change very differently. The goal of the app is similar to its competitors to help people establish better diet and exercise routines. However, the app leverages similar wanna behavior instead of the haftas to keep people on track at first. The Vitacracy experience is similar to other health apps, encouraging new members to track their food consumption and exercise. But where Fitocracy differentiates itself is in its recognition that most users will quickly fall off the wagon, just as I had with MyFitnessPal, unless the app taps into an existing behavior. Before my reactance alarm went off, I started receiving kudos from other members of the site after entering in my very first run. Curious to know who was sending the virtual encouragement. Curious to know who was sending the virtual encouragement, I logged in there. I immediately saw a question from MysProch5, a woman looking for advice on what to do about knee pain from running. Having experienced something similar several years back, I quickly left a reply. Running barefoot or with minimalist shoes eliminated my knee pains. Strange but true. I haven't used PhotoGrassy for a long time, but it's easy to see how someone could get hooked. PhotoGrassy is first and foremost an online community. The app roped me in by closely mimicking real world Jim Jabber among friends. The ritual of connecting with like minded people existed long before photography. The company leverages this behavior by making sharing words of encouragement, exchanging advice and receiving praise easier and more rewarding. In fact, a recent study in the Netherlands found social factors were the most important reasons people used the service and recommended it to users. Social acceptance is something we all crave, and photography leverages the universal need for connection as an on ramp to fitness, making new tools and features available to users as they develop new habits. The choice for the fictocracy user is therefore between the old way of doing an existing behavior and the company's tailored solution. Conclusion to be fair, MyFitnessPal does have social features intended to keep members engaged. However, as opposed to photography, the benefits of interacting with the community come much later, if ever. Clearly, it is too early to tell who among the multitudes of health and wellness companies will emerge victorious, but the fact remains that the most successful customer technology companies of our age, those who have altered the daily behaviors of hundreds of millions of people, are the ones nobody makes us use Perhaps a part of the appeal of sneaking a few minutes on Facebook or checking scores on ESPN is access to a moment of pure autonomy and escape from being told what to do by bosses and co workers. Instead, products that successfully change behavior present users with an implicit choice between their old way of doing things and the new a more convenient solution to existing needs. By maintaining the user's freedom to choose, products can facilitate the adoption of new habits and change behavior for good. Here are the takeaways. When our autonomy is threatened, we feel constrained by our lack of choices and often rebel against doing the new behavior. Psychologists call this reactance. To change behavior, products must ensure the user feels in control. People must want to use a service, not feel they have to. Attempting to create entirely new behaviors is difficult because these actions often feel like haftas. For example, unless someone already has a habit of counting calories and a diet tracking app can feel alienating, telling the user what to do and neglect to provide opportunities to get back on track if they slip up. However, by making an existing behavior easier to do, a product can imply a choice more likely to be accepted. By making the existing behavior simpler and more rewarding, products can give users the choice between their old ways of doing things or or porting their habits to the better new solution instead. By catering to existing routines, products can stand a better chance of changing user behavior as they move people to increasingly complex actions and new habits over time.
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Sam.