We opened real accounts and deposited real money on every platform on this list. Here's our honest, independent ranking based on fees, liquidity, available markets, UX, and regulatory safety.
We earn commissions via affiliate links — this never affects our rankings. Read our full methodology →
| Platform | Score | Regulation | Available in | Fee | Best for |
|---|---|---|---|---|---|
KKalshi#1 Pick | 8.7 | CFTC ✓ | US (49 states + DC) | 5–7% of profit | US beginners |
PPolymarket#1 Global Volume | 8.4 | CFTC ✓ | US (iOS app) + Global | ~0.5–1% spread | High-liquidity traders |
RRebet#3 Pick | 8.1 | State-licensed (sweepstakes model) | US (39 states + DC) | ~3–5% spread | Social sports traders |
OOGNew | 7.9 | Crypto.com group (offshore prediction product) | US (41 states + DC) | Spread-based | Crypto-native traders, sports & events |
CFTC-regulated, US-focused
The only CFTC-regulated prediction market exchange in the US. Real USD deposits, no minimum balance, markets across politics, economics, sports, and weather. New traders get $10 with code WINPREDITCS.
Global, CFTC-licensed, highest liquidity
The world's largest prediction market by volume. CFTC-licensed and available to US traders via the iOS app, with billions in liquidity, near-zero fees, and thousands of markets across politics, sports, crypto, and culture. Deposit $20 and get a $50 trading bonus with code WINPREDITCS.
Social, sports-first, mobile-native
A mobile-native social prediction app focused on sports and live events. Operates under a sweepstakes model in the US, with copy-trading, group bets, and a feed-driven UX aimed at casual traders. New users get a 100% purchase match up to $100 with code WINPREDITCS.
Crypto.com-backed event & sports trading
OG is the Crypto.com group's prediction-market product for sports, crypto, and live events. Backed by Crypto.com brand infrastructure, with a mobile-first trading UX and on-chain settlement. New users earn up to $100 in bonuses with code WINPREDITCS.
License type, fund segregation, consumer protection.
Breadth, depth, long-tail markets.
Bid-ask spreads and ease of exit.
Trading fee, deposit/withdrawal costs, hidden fees.
Onboarding, interface clarity, support.
iOS/Android app quality and notification reliability.
Both are CFTC-licensed. Polymarket wins on liquidity and fees but requires a USDC wallet. Kalshi wins on simplicity and real USD via ACH. See our full Polymarket vs Kalshi comparison for the head-to-head breakdown.
Kalshi and Polymarket are both CFTC-licensed and open to US traders. Kalshi accepts real USD via ACH; Polymarket offers deeper liquidity and lower fees but settles in USDC.
Polymarket. It processes the most volume globally — over $13B monthly by late 2025 — with the tightest spreads on flagship political and crypto markets, and is now available to US traders under a CFTC license.
In the US, CFTC-licensed venues like Kalshi and Polymarket are clearly legal in nearly every state. Outside the US, legality varies by country.
We weight Regulation, Markets, Liquidity, and Fees at 20% each, with UX and Mobile at 10% each. Every platform is tested with a real account and real money — never demo or PR walkthroughs.
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