6 min read · Comparison
ProphetX vs Kalshi
Last updated · fact-checked against live Kalshi and Polymarket data
Quick answer
Key takeaways
- › ProphetX: sports only, nationwide, trade $10 → $20 with FLPREDICTS.
- › Kalshi: politics, weather, economics and sports, trade $25 → $25.
- › Both operate under CFTC-regulated frameworks and use order books.
- › Florida hurricane contracts exist on Kalshi, not ProphetX.
- › Polymarket US remains our #1 overall pick for breadth and liquidity.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at ProphetX. 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. ProphetX products are not available in all jurisdictions. See ProphetX terms for more information.
The 30-second verdict
- › Only trade sports: ProphetX (#2).
- › Hurricane season and Fed markets: Kalshi (#3).
- › Smallest first trade to unlock an offer: ProphetX ($10).
- › Widest board in one account: Kalshi.
- › Most Florida traders: both, plus Polymarket US.
Full comparison
| ProphetX | Kalshi | |
|---|---|---|
| Framework | CFTC-licensed prediction market | CFTC designated contract market |
| Scope | Sports only | Politics, weather, economics, sports |
| Coverage | Nationwide, subject to eligibility | Eligible users; not all jurisdictions |
| Welcome offer | Trade $10 → $20 (FLPREDICTS) | Trade $25 → $25 (FLPREDICTS) |
| Pricing model | Order book | Order book, per-contract fee |
| Florida hurricanes | No | Yes |
| Our score | 4.4 / 5 | 4.5 / 5 |
Where ProphetX wins
Sports depth and focus. Every screen is built around sports events, so finding a specific game or season market takes fewer taps than on a general-purpose exchange.
Lowest entry bar. A $10 qualifying trade unlocks $20 in promotional credit — the least capital required of the offers we track.
Where Kalshi wins
Breadth. Hurricane landfall, named-storm counts, FOMC and CPI contracts have no equivalent on a sports-only venue — and for Floridians, hurricane season is the calendar's biggest trading window.
Desktop and tax paperwork. Kalshi runs in a browser and issues U.S. tax documentation for reportable activity.
The Florida verdict
Run ProphetX through football and basketball season for the sports board, keep Kalshi for June-to-November hurricane contracts and macro releases, and use Polymarket US as your primary for overall breadth. All three offers use code FLPREDICTS, and each has its own eligibility and terms — read them before funding any account.
Sports offer · ProphetX
Trade $10, get $20
New users: deposit $10, trade sports markets on ProphetX, and get $20, subject to current terms.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at ProphetX. 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. ProphetX products are not available in all jurisdictions. See ProphetX terms for more information.
Play responsibly
Prediction markets are real-money trading and you can lose your full stake. We recommend 21+. If trading stops feeling fun, call 1-800-GAMBLER or text 988.
Reviewed by Catie Di Stefano. Every guide follows our editorial standards & review methodology. Affiliate links are disclosed under our affiliate disclosure.