The explosive growth of prediction markets has generated plenty of regulatory debate, but the more revealing story is actually about product design and user experience.
Kalshi and Polymarket combined for nearly $45 billion in volume last month, a figure that demands serious attention from the broader iGaming industry.
Much of their success stems from a deliberate borrowing of design language from fintech and retail investing rather than from traditional sportsbooks and bookmakers.
Retail investing platforms have reshaped the digital expectations of millions of ordinary consumers through commission-free trading, live pricing, and portfolio management tools.
Robinhood, for example, reported 27.4 million funded customers in the first quarter of this year, illustrating just how deeply investment app culture has penetrated mainstream consumer behaviour.
Prediction markets have capitalised directly on this phenomenon, presenting information in ways that already feel intuitive to users who have never previously placed a sports bet.
Rather than asking new users to learn the conventions of traditional betting, prediction markets display probabilities in real-time percentages that mirror the visual language of trading dashboards.
Traditional sportsbooks remain largely transaction-led products, designed to help users find a market, place a wager, and then wait for the outcome to be settled.
Prediction markets encourage an entirely different mindset, with users monitoring price tickers, reacting to breaking news, and responding to the collective movements of the market throughout an event.
Every injury update, substitution, weather delay, or momentum shift becomes a fresh reason to re-engage with the product, creating a continuous interaction loop that sportsbooks have historically struggled to replicate.
Data suggests this continual engagement loop directly correlates with growth patterns showing Kalshi and Polymarket increasing activity throughout the World Cup, while FanDuel and DraftKings apps peaked in the tournament’s first week and then declined.
Betting exchanges have offered similar mechanics for decades in markets like the UK and Ireland, but prediction markets have repackaged that dynamic for a new generation of consumers.
Clean interfaces, simplified terminology, and mobile-first design principles have made concepts that once appealed primarily to experienced bettors feel far more accessible to mainstream audiences.
As Alan Bruce, chief operating officer at The Unit, notes, it is no less complex to use Polymarket, but it feels much simpler than logging on to Betfair.
Bruce, a betting and iGaming executive with more than two decades of industry experience, argues that the biggest product mistake operators make is looking exclusively at direct competitors for inspiration.
Consumers do not compare their sportsbook app only with other sportsbooks, but with every other application on their phone, including banking apps, streaming services, and social media platforms.
The next generation of users will arrive shaped by investment apps, crypto exchanges, fantasy sports products, and social platforms, not solely by their experience of traditional betting products.
Operators that fail to meet those broader digital expectations risk losing users to products that simply feel more contemporary and intuitive from the very first interaction.
Thoughtful product design has become a genuine commercial differentiator, driving longer sessions, stronger retention, and greater lifetime value at a time when acquisition costs continue to climb across the industry.
