Prediction Market Platform Reviews

In-depth reviews of every major US prediction market platform — Kalshi, Polymarket, Robinhood, DraftKings, FanDuel and more. Scored & updated weekly.

Updated Oct 21, 2026

Scores last verified: August 25, 2026

CFTC-regulated platforms are federally licensed derivatives exchanges with segregated funds. Sweepstakes platforms operate under state sweepstakes law with virtual currencies.

How we score: every platform is rated on regulation, market variety, fees and spreads, user experience and promotions, using the weights in our review methodology. We earn commissions from some platforms; the ranking follows the published method, and platforms marked “No affiliate deal” earn us nothing. Each card shows the date its scores were last reviewed.

🏆 Editor's Choice

Ease of Use 82

Market Variety 90

Fees 92

Mobile App 85

Regulation 84

🥈 Best Sports-First Exchange

/100

ProphetX

4.6 / 5

ProphetX spent years as a state-licensed exchange and then a sweepstakes product before the CFTC approved it in June 2026 as both a Designated Contract Market and a Derivatives Clearing Organization — the first sports-native exchange in the US allowed to list and clear its own contracts. That change matters to your wallet, not just to its lawyers: you now trade against other participants on a federally regulated order book instead of against a house price. ProphetX is built around sports, and that focus shows in the depth of its NFL, NBA, MLB and college order books. If you want politics or macro contracts, check the app or use Polymarket or Kalshi alongside it; if you mostly trade sports, the peer-to-peer pricing here is the most trader-friendly on our list.

UpdatedSeptember 18, 2026 Scores last reviewed: September 18, 2026

−Built around sports — check the app for other markets
−Order books thin out on niche leagues and deep props

Ease of Use 88

Market Variety 72

Fees 94

Mobile App 89

Regulation 92

Ease of Use 88

Market Variety 78

Fees 80

Mobile App 88

Regulation 82

Ease of Use 82

Market Variety 74

Fees 78

Mobile App 82

Regulation 78

/100

Sleeper Markets

3.8 / 5

Sleeper Markets is the most natural on-ramp to prediction markets for the 10 million users already on Sleeper's fantasy sports platform. Launched in February 2026 via a partnership with Kalshi, it brings CFTC-regulated sports event contracts directly into the app where millions of fans already manage their fantasy leagues. The integration is the key differentiator: there is no new account to create, no new interface to learn, and no separate download. Fantasy sports players who follow injury reports, roster moves, and matchup data daily are exactly the kind of informed traders who have genuine edges in game-level prediction markets. The current limitation is category depth — Sleeper Markets is sports-only right now, with politics and other categories planned for later expansion.

UpdatedAugust 25, 2026 Scores last reviewed: August 25, 2026

No affiliate deal

−Sports-only for now — no macro, politics, or entertainment
−FCM structure (one step removed from the exchange level)

Ease of Use 80

Market Variety 70

Fees 70

Mobile App 85

Regulation 72

Offer terms

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.