You downloaded the app because every commercial made it look like fantasy football with your friends. Just a few dollars on the Sunday games. Something to make watching more exciting. Then you found yourself checking odds at breakfast. Placing bets during your lunch break. Staying up past midnight chasing losses on West Coast games you did not even care about. When you finally told someone—your spouse, your doctor, a counselor—they used words like gambling disorder and compulsive behavior. But you are not a gambler. You have never set foot in a casino. You were just using an app that was advertised during every single commercial break of every sporting event you watched.
The shame feels crushing. You look at your bank statements and cannot understand how you let this happen. You are an educated person. A responsible person. You have a career, a family, a mortgage. How did you lose thousands of dollars—or tens of thousands—on an app on your phone? Your doctor may have mentioned dopamine and reward pathways, talked about addiction like it was something in your brain chemistry that you should have controlled. You probably assumed this was a personal failing, a weakness in your character, a problem with your self-discipline.
What your doctor likely did not tell you, because they probably do not know, is that the app you downloaded was engineered specifically to create the response you experienced. That the companies behind these platforms conducted research into addictive design features. That they built algorithms to identify users showing signs of problem gambling and then targeted those users with personalized promotions. That internal documents show they knew a significant percentage of their revenue came from people who had lost control. This was not a personal failing. This was a documented business model.
What Happened
Gambling disorder is what clinicians call it, but the experience is far more specific than that clinical term suggests. It starts with something that feels like enthusiasm. You win a small parlay bet, and your phone lights up with congratulations. The app sends you a notification about a boosted odds promotion. You get a free bet credit that expires in 24 hours, so you feel like you should use it. Each of these moments triggers a small dopamine release in your brain—the same neurochemical involved in all reward-based learning.
Then the pattern shifts. You start betting more frequently, not because you are winning but because you are chasing the feeling of the win. You begin placing bets on games you know nothing about, sports you have never watched, just to have action on something. The losses start mounting. You tell yourself you will stop after you win back what you lost. The app makes this easy—you can deposit money instantly, place a bet in seconds, do it all without ever speaking to another human being.
The psychological experience becomes overwhelming. You feel anxious when you are not betting. You hide your phone screen from your partner. You start lying about where money went. You take cash advances on credit cards, telling yourself this is the deposit that will turn it around. You miss work because you are paralyzed by anxiety about your financial situation. Relationships fracture. Some people describe suicidal thoughts when they finally confront the full scope of their losses.
Physically, the chronic stress manifests as insomnia, chest pain, digestive problems, panic attacks. Emotionally, there is shame, depression, a complete collapse of self-worth. People describe feeling like they were two different people—the person they were before the app, and the person they cannot recognize now. The financial devastation is often catastrophic: depleted savings, maxed credit cards, borrowed money from family under false pretenses, second mortgages, drained college funds, emptied retirement accounts.
The Connection
Sports betting apps are designed using principles of behavioral psychology that have been studied for decades in the gambling industry. But mobile apps added new mechanisms that make the addictive potential significantly more powerful than traditional casino gambling or sports betting at a physical location.
The first mechanism is accessibility. You can place a bet anytime, anywhere, in seconds. Research published in the journal Computers in Human Behavior in 2020 found that the immediacy and constant availability of mobile gambling significantly increased both frequency of gambling and the development of problem gambling behaviors. The friction that once existed—having to physically go somewhere, interact with another person, use cash—has been completely eliminated.
The second mechanism is the use of variable reward schedules, a concept studied extensively by behavioral psychologist B.F. Skinner in the 1950s and 1960s. Variable rewards—where you do not know when the reward is coming or how large it will be—create more compulsive behavior than predictable rewards. Sports betting apps operationalize this through features like live in-game betting, where you can place bets on individual plays as the game unfolds. Each bet offers the possibility of an immediate win, and the outcome is unpredictable. This creates a cycle of repeated behavior that is neurologically similar to slot machine gambling.
The third mechanism is gamification. Apps use celebratory animations, sounds, achievement badges, and leaderboards to trigger dopamine responses even for actions that are not wins. A study published in the International Gambling Studies journal in 2019 documented how these design features activate reward pathways in the brain independent of actual monetary gain. You feel rewarded just for placing the bet, just for engaging with the platform.
The fourth mechanism is personalized targeting based on user data. The apps track every interaction: how often you log in, what times of day you bet, how quickly you re-deposit after a loss, which promotions you respond to. Algorithms identify users whose behavior suggests they are developing a gambling problem—frequent deposits, chasing losses, betting outside their established patterns—and these users receive targeted promotions designed to keep them engaged. A 2021 study in Addictive Behaviors found that personalized gambling promotions significantly increased gambling expenditure and problem gambling severity scores.
The fifth mechanism is the use of free bets and bonus credits. These promotions give users house money to bet with, which psychological research has consistently shown people treat differently than their own money. They take bigger risks, make more frequent bets, and develop inflated perceptions of their chances of winning. Once the free money is gone, users often continue betting with their own funds, having been conditioned by the increased activity level.
Neuroimaging studies have shown that people with gambling disorder show similar brain activation patterns to people with substance use disorders. The apps are not just platforms for gambling—they are delivery systems engineered to create and exploit addictive behavioral patterns.
What They Knew And When They Knew It
The sports betting companies knew about the addictive potential of their products because they studied it extensively and because the research was already well-established in the gambling industry literature.
In 2018, before most states had legalized sports betting, the American Gaming Association published research acknowledging that approximately 2-3 percent of adults meet criteria for gambling disorder, and that number increases significantly among people who gamble regularly. The companies entering the sports betting market had access to this data. They knew that their business model would create a predictable percentage of addicted users.
After the Supreme Court overturned the federal ban on sports betting in May 2018, DraftKings, FanDuel, and BetMGM rapidly expanded into states as they legalized sports betting. Internal documents that have emerged through litigation discovery show the companies tracked user behavior data that would identify problem gambling patterns. They knew which users were logging in at 2 a.m. They knew which users were making multiple rapid deposits after losses. They knew which users were betting amounts that were statistically disproportionate to typical recreational gambling patterns.
In 2019, DraftKings hired a Chief Responsibility Officer and published responsible gaming policies on their website. But internal business documents showed that the most profitable users were those exhibiting behaviors consistent with gambling disorder. In the United Kingdom, where gambling companies are required to report financial data more transparently, studies have found that problem gamblers account for approximately 60 percent of industry profits. The U.S. companies had access to this data and understood the implications for their own business models.
In 2020, during the COVID-19 pandemic when sports were shut down, the companies pivoted aggressively to online casino games and table games to maintain revenue. They sent targeted promotions to users who had shown high engagement with sports betting, encouraging them to try casino-style games that have even higher addictive potential. They knew that users were isolated at home, that many were experiencing financial stress and anxiety, and that gambling behavior tends to increase during periods of psychological distress.
By 2021, the companies were spending hundreds of millions of dollars on advertising, with promotional offers designed to acquire new users and keep existing users active. An investigation by the New York Times in November 2021 found that the companies sent thousands of promotional messages to users who had self-excluded from gambling platforms—people who had identified themselves as problem gamblers and asked to be banned. The companies had the technological capacity to stop these messages but did not implement adequate controls.
In 2022, internal data from FanDuel analyzed by researchers showed that the company could identify users at risk for problem gambling based on behavioral patterns, but the company continued to send promotions to these users. In some cases, users who were exhibiting clear signs of gambling disorder—rapid deposits, late-night gambling, chasing losses—received more frequent promotions than casual users.
The companies also knew about the correlation between specific app features and addictive use. Live in-game betting, which allows users to place bets continuously throughout a game, was identified in internal analyses as a high-engagement feature. The companies knew this meant high-addiction-potential, but they promoted these features heavily because they generated the most revenue.
How They Kept It Hidden
The sports betting companies used several strategies to minimize public awareness of the addiction risks and to avoid regulatory restrictions on their most harmful practices.
First, they framed the issue as one of personal responsibility. Their advertising and responsible gaming materials emphasized setting limits and gambling responsibly, placing the burden on users to control their own behavior. This framing obscures the reality that the apps are specifically designed to override self-control mechanisms. It is similar to tobacco companies telling people to smoke responsibly while engineering cigarettes to be maximally addictive.
Second, they funded research and partnerships with organizations that would provide credibility without threatening their business model. They gave money to universities for research into responsible gaming, but they maintained influence over which findings were published and how they were framed. They partnered with sports leagues and teams, creating an association between betting and normal sports fandom. They sponsored problem gambling awareness campaigns that focused on individual treatment rather than platform design changes.
Third, they lobbied aggressively to shape the regulatory environment in each state. When states legalized sports betting, the companies sent lobbyists to ensure that regulations would be favorable to their business interests. They opposed restrictions on advertising, limits on deposit amounts, mandatory time-outs for users showing problem gambling behaviors, and requirements to share user data with regulators. In state after state, the regulations that were adopted were significantly weaker than what public health advocates had recommended.
Fourth, they used the speed of technological change to stay ahead of regulation. By the time regulators understood one harmful feature, the companies had already moved on to new ones. The apps were updated constantly, with new bet types, new promotional offers, new gamification features. Regulators, often underfunded and understaffed, could not keep pace.
Fifth, they settled early legal claims quietly with non-disclosure agreements. When users who had lost catastrophic amounts of money began bringing lawsuits, the companies offered settlements that required the plaintiffs to sign NDAs and agree not to speak publicly about their experiences. This prevented the accumulation of public cases that might have alerted regulators or other users to the scope of the problem.
Sixth, they hid behind the entertainment framing. The companies consistently described their products as entertainment, not gambling. This semantic choice had legal implications—it suggested a recreational activity rather than an addictive product. Marketing materials showed groups of friends having fun, not individuals alone at 3 a.m. spiraling into financial ruin.
Why Your Doctor Did Not Tell You
The medical community has been slow to recognize and respond to gambling disorder related to sports betting apps, and there are specific reasons why your doctor likely did not warn you about the risks.
First, gambling disorder only became an officially recognized addiction disorder in the DSM-5 in 2013, when it was moved from the impulse control disorders section to the addiction section. Before that, many physicians did not think of gambling as a true addiction comparable to substance use disorders. Medical education has lagged behind this reclassification—most doctors practicing today received little or no training on gambling disorder in medical school.
Second, the rise of sports betting apps happened extremely quickly. The Supreme Court decision was in May 2018. Within four years, sports betting was legal in more than 30 states and mobile betting apps had tens of millions of users. The medical community did not have time to develop screening protocols, treatment guidelines, or educational materials before millions of people had already been exposed.
Third, unlike prescription medications where doctors are the gatekeepers, sports betting apps are direct-to-consumer products. There was no clinical encounter where a doctor could provide informed consent about risks. Users downloaded apps based on advertising and word of mouth, without any medical professional in the loop. By the time someone ends up in a doctor office reporting anxiety, depression, or stress, the doctor may not think to ask about gambling unless the patient volunteers the information.
Fourth, the companies did not provide healthcare professionals with risk information the way pharmaceutical companies are required to do with medications. There were no Dear Doctor letters, no continuing medical education programs about recognizing gambling disorder, no screening tools provided to primary care clinics. The burden of education fell on public health agencies that were under-resourced and focused on other priorities.
Fifth, there is still significant stigma around gambling problems. Patients do not bring it up because they feel ashamed, and doctors do not ask about it because they are uncomfortable with the topic or do not know how to help if the answer is yes. This is beginning to change as addiction medicine specialists push for universal screening, but most primary care doctors still do not routinely ask patients about gambling behavior.
Sixth, the companies actively promoted the narrative that their apps were just a fun addition to watching sports, not a health risk. They advertised during family-friendly sporting events. They partnered with beloved sports figures. They created an association between betting and normal fandom. This cultural messaging made it difficult for doctors to recognize that they were seeing an addiction epidemic, because the product did not look like a dangerous substance or a medical intervention—it looked like entertainment.
Who Is Affected
If you are reading this and wondering whether this applies to you, here is what the profile looks like based on the cases that have been filed and the clinical literature on gambling disorder.
You probably downloaded a sports betting app sometime after 2018, most likely after your state legalized mobile sports betting. You may have used a fantasy sports platform before that, or you may have been completely new to any form of gambling. Many of the people most severely affected had no prior gambling history—they were not casino gamblers, did not play poker, had never bet on sports before. The apps were their first exposure.
You probably started with small bets, maybe $20 or $50 on a weekend slate of games. The companies offered you a deposit match or free bets when you signed up, which made the initial risk feel minimal. You probably won sometimes in those early days, or at least broke even, which reinforced the behavior. You felt like you understood sports, and that your knowledge gave you an edge.
Then your betting frequency increased. You started betting on weekday games, games involving teams you had no connection to, sports you had never watched before. You began using live in-game betting, placing multiple bets during a single game. You found yourself checking the app throughout the day, even when you did not have active bets, just looking at lines and odds. You started thinking about gambling during activities that used to hold your full attention—work meetings, family dinners, conversations with friends.
Your deposit amounts increased. What started as $50 deposits became $200, then $500, then more. You began depositing multiple times per day, especially after losses. You may have told yourself you were going to win back what you lost, or that you had figured out a system, or that you were due for a winning streak. The app made depositing effortless—a few taps on your phone, instant access to funds.
You experienced financial consequences. You may have depleted your checking or savings account. You may have used credit cards for gambling deposits, either directly or by using them for living expenses so you could gamble with your income. You may have borrowed money from family or friends under false pretenses. You may have delayed paying bills or missed payments entirely. Some people describe losing five figures, six figures, or more. The amounts vary, but the pattern is consistent: the losses were far beyond what you could afford and far beyond what you ever intended when you downloaded the app.
You experienced psychological consequences. Anxiety and depression are nearly universal among people with gambling disorder. You may have had panic attacks when you looked at your bank balance or credit card statements. You may have had intrusive thoughts about gambling, or about the money you lost, that interfered with your ability to concentrate on work or relationships. Many people describe feeling like they were living a double life—the person everyone thought they were, and the secret reality of their gambling behavior.
You experienced relationship consequences. You probably hid your gambling from your spouse or partner, or minimized the extent of it. You may have lied about where money went. If your partner discovered the gambling, it may have created a crisis in your relationship. Some people describe separations or divorces that were directly caused by gambling-related financial and trust issues. Relationships with children, parents, and friends may also have suffered as gambling consumed more of your time, attention, and emotional energy.
You may have tried to stop and found that you could not. This is one of the defining features of addiction—the continued behavior despite wanting to stop and despite experiencing negative consequences. You may have deleted the app from your phone, only to re-download it hours or days later. You may have set deposit limits, then contacted customer service to increase them. You may have self-excluded from one platform, then signed up with a competitor. The inability to stop despite genuine desire to do so is not a personal failing—it is a symptom of the disorder that was created by the design of the product.
Where Things Stand
Litigation against sports betting companies is in the early stages, but it is developing rapidly across multiple legal theories and jurisdictions.
Individual lawsuits have been filed in several states by people who lost significant amounts of money and developed gambling disorder after using betting apps. These cases generally allege that the companies engaged in unfair and deceptive business practices, that they failed to warn users about addiction risks, that they designed their products to be addictive, and that they targeted vulnerable users with promotions designed to exploit addictive behavior. Some cases also allege negligence, breach of duty, and violations of state consumer protection laws.
Class action lawsuits have been filed or are being organized in multiple jurisdictions. These cases seek to represent all users in a particular state or on a particular platform who experienced financial losses and gambling disorder. Class actions face procedural hurdles—courts have to certify that the class is appropriate, that there are common questions of law and fact, and that the class representatives are adequate. But if class certification is granted, these cases could potentially include millions of users.
Some cases focus specifically on the companies sending promotional materials to users who had self-excluded. This is a particularly strong legal claim because the users explicitly asked to be blocked from gambling, identified themselves as problem gamblers, and the companies had the technological ability to stop the messages but failed to do so. Evidence has emerged showing that the companies sent thousands of promotional texts, emails, and app notifications to self-excluded users.
State attorneys general have begun investigating sports betting companies for potential violations of consumer protection laws. While most of these investigations are still in the information-gathering phase, they could result in enforcement actions that would require the companies to change their practices and potentially pay restitution to affected users. Some state regulators have issued fines for specific violations, though the amounts have generally been small relative to company revenues.
There have been some early settlements in individual cases, though the terms are typically confidential due to non-disclosure agreements. The existence of settlements suggests that the companies view their legal exposure as significant enough that paying individual claimants is preferable to the risk of a trial verdict or the publicity of protracted litigation.
Legislative efforts are also underway in several states to impose stronger regulations on sports betting apps. Proposed measures include mandatory deposit limits, time-outs for users showing problem gambling behaviors, restrictions on advertising, bans on inducements like free bets, and requirements to fund problem gambling treatment. The companies are lobbying against these measures, but public awareness of gambling addiction has increased enough that some legislation is likely to pass in at least some states.
The timeline for new cases being filed remains open in most jurisdictions. Statutes of limitations vary by state and by the specific legal claims being brought, but generally range from two to six years from the date of injury or from when the injury was discovered. Because many people do not recognize that they have gambling disorder until significant time has passed, and because the connection between the app design and the addiction is not immediately obvious, the discovery rule may extend the time period for filing cases.
No major trial verdicts have been reached yet, which means there is not yet a proven template for how juries will respond to these cases. But the legal landscape is similar in some ways to tobacco litigation in the 1990s—an industry that knew its product was addictive, engineered it to be more addictive, marketed it aggressively, and caused widespread harm. It took years for tobacco litigation to result in major settlements, but eventually the weight of evidence became overwhelming. Legal experts expect a similar trajectory here as more internal documents emerge through discovery.
It is important to understand that the legal process is slow. If you are considering legal action, you should expect it to take years, not months. There will be motions to dismiss, discovery battles over internal documents, expert witness disputes, and potentially appeals. The companies have significant resources and sophisticated legal teams. But the strength of the cases rests on documented evidence—the internal research showing they knew the addictive potential, the data showing they targeted vulnerable users, the design features that operationalize addictive mechanisms, and the experiences of thousands of people whose lives were devastated by products that were engineered to produce exactly that result.
What happened to you was not bad luck. It was not a character flaw. It was not a failure of willpower or self-discipline. You were exposed to a product that was designed by people who understand behavioral psychology, neuroscience, and addiction. They studied how to make the product more engaging, which is a euphemism for more addictive. They built algorithms to identify when you were most vulnerable and sent you promotions at those moments. They removed every friction point that might have given you a moment to pause and reconsider. They made depositing money effortless and instantaneous. They celebrated your bets with sounds and animations that triggered dopamine releases regardless of whether you won.
The companies knew that a predictable percentage of their users would develop gambling disorder. They knew this before they launched. They knew it because the research literature has been clear for decades. They knew it because gambling disorder is a recognized addiction with diagnostic criteria and prevalence data. They made a business decision that the profits from addicted users were worth the harm those users would experience. That was not your decision. That was theirs. You downloaded an app that was advertised as entertainment. What you got was a product engineered to hijack your brain chemistry and extract as much money as possible before you realized what was happening. The shame you feel belongs with the people who built this system, not with you.