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Prediction Markets

Prediction markets let you trade event contracts on real-world outcomes—sports results, election winners, economic indicators, and crypto prices. Unlike sportsbooks, prices are set by the crowd and move as sentiment shifts, more like a financial exchange than a betting slip. CFTC-registered platforms like Kalshi operate under federal oversight; offshore platforms like Polymarket use crypto settlement. In this section we review the leading prediction market apps and platforms of 2026, including Kalshi, Polymarket, OG, and ProphetX. Each review covers available markets, contract mechanics, fee structure, deposit and withdrawal options, regulatory status, and how each platform compares to traditional sports betting.

4 games reviewed

Games in Prediction Markets

  • Prediction Markets

    Kalshi

    The first CFTC-regulated prediction market exchange in the US — legally trade event contracts on politics, sports, economics, and more.

    Kalshi is the only federally regulated prediction market exchange in the United States, operating under CFTC oversight after a landmark legal battle that established event contracts as legal financial instruments. It is the definitive platform for US residents who want to trade on news, politics, sports outcomes, and economic indicators with full legal compliance. With 131,000+ App Store reviews at a 4.75 average, a continuously expanding market catalog, and the fastest withdrawal pipeline in the prediction market category, Kalshi is the clear top choice for serious prediction market participants.

    9.2 /10
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  • Prediction Markets

    OG

    OG Markets' prediction platform — trade the future on sports, news, and pop culture events with a focus on US accessibility and emerging market depth.

    OG is an emerging US prediction market platform with a genuine product and a growing event catalog across sports, news, politics, and entertainment. Built with a focus on accessible prediction trading for US users, OG has developed a clean mobile interface and a market structure that competes directly with Kalshi on sports and current-events categories. The App Store review base is still growing (782 reviews at 4.46), which reflects the platform's early stage rather than product quality concerns — the trading experience itself is well-designed and the payout process is reliable. For US prediction market enthusiasts who want a second account alongside Kalshi, OG is the recommended choice.

    9.1 /10
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  • Prediction Markets

    Polymarket

    The world's largest prediction market by volume — blockchain-settled contracts on global events, but not legally accessible to US traders.

    Polymarket is the largest prediction market in the world by trading volume, operating as a blockchain-based platform where global users trade USDC-settled contracts on real-world events. The product is technically excellent — deep liquidity on political and crypto markets, no trading fees, transparent on-chain settlement, and a mobile app that has earned 30,000+ reviews at a 4.66 rating. The critical limitation for this review is that Polymarket is not available to US residents. The platform is offshore, not CFTC-regulated, and settled a 2022 enforcement action with the CFTC for previously offering contracts to American users. US readers are informed; the recommended alternative for legal US access is Kalshi.

    7.8 /10
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  • Prediction Markets

    ProphetX

    A newer US prediction market exchange focused on sports and entertainment event contracts — solid early product with a growing market catalog.

    ProphetX is one of the newer US prediction market platforms, earning a 4.81 App Store rating from nearly 3,000 reviews — a strong quality signal for a product at this stage of development. The platform focuses on sports and entertainment event contracts with a clean, intuitive trading interface. The realistic limitation is scale: ProphetX's market catalog and liquidity pool are materially smaller than Kalshi's, which means thinner order books and wider spreads on most contracts. For prediction market enthusiasts who want to explore the full landscape beyond the two leading platforms, ProphetX is worth adding to the rotation; for most users, Kalshi and OG cover the essential bases.

    7.2 /10
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