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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.

7 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 442,000+ App Store reviews at a 4.82 average (as of August 2026), 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 a federally-regulated US prediction market platform with a growing event catalog across sports, news, politics, and entertainment. Built with a focus on accessible prediction trading for US users, OG offers a clean mobile interface and a market structure that competes directly with Kalshi on sports and current-events categories. App Store: 4.35/5 across 989 reviews (as of August 2026). Welcome offer: trade $10, get $10 in new-user rewards — with milestone bonuses scaling up to $100 available for qualifying settled trades. OG is not available in New York or Arizona; sports contracts are restricted in 7 additional states (NV, OH, MI, MD, MA, NJ, IL). For US prediction market enthusiasts who want a strong second account alongside Kalshi, OG remains 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 world's largest prediction market by trading volume, now fully legal and CFTC-regulated for US users in all 50 states. The platform trades USDC-settled contracts on politics, sports, crypto, geopolitics, and more. Key advantages: no trading fees, tightest spreads in prediction markets, instant cashouts, and deep liquidity on major events. The app has earned 53,000+ App Store reviews at a 4.6 rating. State-level legal activity is ongoing — Minnesota passed a prediction markets ban in May 2026, but a federal judge issued a preliminary injunction on July 27, 2026 blocking the law from taking effect; Polymarket continues to operate in Minnesota while the litigation proceeds. Polymarket competes directly with Kalshi for US traders — it offers a broader market catalog and the liquidity of a global network, while Kalshi has the more established domestic regulatory track record. Strong first pick for serious prediction market traders (as of August 2026).

    7.8 /10
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  • Prediction Markets

    Robinhood Predictions

    Event contracts built into the Robinhood investing app

    Robinhood Predictions is live and well-rated (4.29 ⭐, 4.83M reviews). CFTC-regulated via Robinhood Derivatives LLC / Kalshi exchange. Welcome offer: up to $200 in reward stock (most users receive $7–8 in practice; confirmed July 2026). No promo code required. Min deposit: $1. Fees: probability-weighted commission — 10% × p × (1−p) per contract (5% with Gold), capped at $0.01/contract; plus exchange fee up to $0.01/contract per side (fee structure changed June 1, 2026 from prior flat rate). $0 standard ACH withdrawal; 1.75% instant withdrawal fee. Restricted: MD (all event contracts blocked); NV (sports event contracts blocked as of Dec 1 2025). Available all 50 states + DC for non-sports markets. Payout proceeds available within 2 business days of settlement; ACH 1–3 additional business days. Reddit: no significant complaints; minor payout confusion posts rooted in user misunderstanding contract mechanics.

    7.8 /10
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  • Prediction Markets

    ForecastEx

    Institutional-grade prediction markets inside your IBKR account

    ForecastEx is the cleanest US prediction market for IBKR users — zero maker fees, ~3.80% APY incentive coupon (as of August 2026), institutional backing — but newcomers face real brokerage friction to get started. IBKR launched a unified prediction markets screen combining Kalshi, CME, and ForecastEx contracts in May 2026.

    7.5 /10
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  • Prediction Markets

    Manifold Markets

    Predict anything. No money needed.

    Manifold Markets is a play-money prediction platform where users trade on the outcomes of future events using Mana. UPDATE (September 2026): The sweepcash redemption feature was shut down March 28, 2025 — Mana is now strictly play-money and cannot be redeemed for cash. The only way to win real money is through periodic Prize Drawings, which launched April 9, 2026. Drawings award USDC prizes; entry is free for eligible users with at least M1,000 invested. Prize Drawings are restricted in DE, ID, MA, MI, NV, NY, WA, and Washington D.C. Mana purchases now crypto-only. New signups receive M1,000 free play money (corrected September 2026 — multiple 2026 sources confirm; prior entry of M$500 was incorrect). App rating: 4.5 stars, 132 reviews (July 2026; App Store ID fetch unavailable this run).

    7.2 /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.

    4.8 /10
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