Meta launches Arena: the betting app that challenges Polymarket

What happened?

According to The New York Times and confirmed by The Next Web, Meta has created a small team under Mark Zuckerberg's direction to develop Arena, a mobile app for prediction markets. The app will operate independently of Facebook and Instagram, and for now will be based on a points system similar to a video game, with no real-money transactions. Meta has not made official comments.

This move is not a whim: Zuckerberg has shown interest in prediction markets since at least 2019, when he invested in the open-source project Augur through his Chan Zuckerberg Initiative. However, the current approach is more pragmatic: Arena is shaping up as a tool to capture behavioral data and opinions at scale, a strategic asset for AI development and predictive advertising. Although the app is described as an internal experiment, the allocation of direct resources by the CEO indicates the project has high priority.

Why is it important?

Meta has over 3 billion monthly active users across its platforms. If Arena manages to integrate a fraction of that base, it could transform prediction markets, until now a niche dominated by platforms like Polymarket (blockchain-based) and Kalshi (regulated by the CFTC). The entry of a tech giant validates the business model and could accelerate sector regulation.

To understand the impact, recall that prediction markets have seen explosive growth in recent years. Polymarket, for example, processed over $1 billion in betting volume during the 2024 US election cycle, according to Dune Analytics. However, its user base remains relatively small (around 500,000 monthly active users). Arena, with Meta's backing, could scale that number to tens of millions in a few months if integration with existing platforms materializes. Moreover, the points system without real money lowers entry barriers: any user with a smartphone can participate without needing cryptocurrencies or financial accounts.

Historically, prediction markets have been marginal tools used by betting enthusiasts and political analysts. But their accuracy in forecasting events (like elections or pandemics) has been documented in academic studies, such as those from the University of Iowa. Meta's entry could democratize access to these predictions, but also poses risks: misinformation could spread if markets are manipulated, a problem that has already affected Polymarket in the past.

What consequences will it have?

In the short term, Arena will compete with Polymarket and Kalshi by attracting users unfamiliar with cryptocurrencies or financial platforms. In the long term, if Meta introduces real money, it could face regulatory hurdles in multiple countries. Additionally, Meta's ability to analyze prediction data could give it an edge in AI and trend analysis.

The regulatory landscape is complex. In the US, the Commodity Futures Trading Commission (CFTC) has shown an ambivalent stance: while Kalshi operates under its oversight, the CFTC has blocked Polymarket's attempts to offer political event contracts. Meta, with its vast legal resources, could push for favorable regulation, but might also choose to keep Arena as a points game to avoid scrutiny. In the European Union, the Digital Services Act (DSA) and General Data Protection Regulation (GDPR) would impose additional restrictions on how Meta can use prediction data for advertising or AI training.

Competition will also intensify. Polymarket has already announced it is exploring partnerships with media outlets to offer real-time predictions, while Kalshi has expanded its offerings to climate and economic events. If Meta launches Arena with real money, it could trigger a war of commissions and subsidies to attract users, similar to what happened in the mobile payments sector with Apple Pay and Google Wallet. Moreover, integration with Instagram and WhatsApp could allow Meta to offer social predictions (e.g., "Who will win the game?") that go viral.

From a user perspective, Arena could be a gateway to prediction markets, but also carries risks of addiction, especially if gamified with points and rewards. Meta has a history of privacy and mental health controversies, as evidenced by Frances Haugen's testimonies and the Facebook Papers leaks. Therefore, data handling in Arena will be critical: if Meta uses predictions to segment ads or train AI models without explicit consent, it could face new investigations.

Finally, the impact on the AI market should not be underestimated. User predictions generate a constant stream of data about beliefs and expectations, which are valuable for training language models and recommendation systems. Meta has already invested heavily in AI (like the Llama 3 model) and Arena could provide a competitive advantage over Google and OpenAI, which lack their own prediction platform.

What should readers know?

For now, Arena is an internal project with no release date. Users should be aware that prediction markets carry risks of addiction and misinformation. Meta has a history of privacy controversies, so data handling in Arena will be critical. It is advisable to follow regulatory developments before participating.

Additionally, it is important to note that the initial points system involves no real economic gain, but could be a hook to engage users before introducing real-money bets. Meta has used similar strategies in the past, such as when it launched Facebook Credits (virtual currency) that later integrated with real payments. Readers should watch for changes in the app's terms of service and privacy policies.

Finally, although Meta has the resources to scale Arena quickly, it is not immune to failures. The company has canceled multiple ambitious projects, such as Libra (the cryptocurrency) and Horizon Worlds (the metaverse). Arena could suffer the same fate if it fails to attract enough users or faces regulatory backlash. For now, the recommendation is to maintain an attitude of informed expectation.