ProphetX vs Kalshi
Last updated September 18, 2026 · fact-checked against live Kalshi and Polymarket data
Kalshi · Trade $25 and Get $25!
FLPREDICTSClaim (opens in a new tab)21+ · T&Cs apply
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.
Short answer: ProphetX if you only trade sports. Kalshi if you want hurricanes, elections and Fed markets in the same account. They solve different problems.
Quick answer
ProphetX ranks #2 and Kalshi #3 on our list. ProphetX is built around sports, with a sports-native order book and a trade $50, get $75 offer using code FLPREDICTS. Kalshi is broader — politics, weather, economics and sports — with web access and a trade $25, get $25 offer. Sports-only traders should start with ProphetX; anyone wanting hurricanes or macro needs Kalshi.
Kalshi · Trade $25 and Get $25!
FLPREDICTS
Claim on Kalshi (opens in a new tab)
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.
Last checked October 21, 2026
Key takeaways
- › ProphetX: sports-first, in 49 states plus D.C., trade $50 → $75 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.
Trade $50, get $75 (opens in a new tab)
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: Kalshi ($25).
- › 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-first | Politics, weather, economics, sports |
| Coverage | In 49 states plus D.C. (not Nevada), subject to eligibility | Eligible users; not all jurisdictions |
| Welcome offer | Trade $50 → $75 (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.
Biggest welcome credit. A $50 qualifying trade unlocks $75 in promotional credit — the largest credit in dollars of the offers we track.
Where Kalshi wins
Breadth. Hurricane landfall, named-storm counts, FOMC and CPI contracts have no equivalent on a sports-first 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 $50, get $75
New users: deposit $50, trade sports markets on ProphetX, and get $75, subject to current terms.
Sports prediction market · CFTC-designated exchange · welcome offer valid in 49 states + D.C. (not Nevada)
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.
(opens in a new tab)Claim the $25 bonus (opens in a new tab)
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.
Sources
- › ProphetX — official sports prediction market (opens in a new tab)
- › Kalshi Help Center — fees, deposits, and withdrawals (opens in a new tab)
- › CFTC — Designated Contract Markets (regulated exchanges)
- › U.S. Commodity Futures Trading Commission (CFTC)
Related reading
Frequently asked questions
Should I use ProphetX or Kalshi?
If you only trade sports, ProphetX is the better daily driver — it is a sports-native prediction market with an order book and a trade $50, get $75 offer. If you also want hurricanes, elections or Fed markets, Kalshi covers those; ProphetX is built around sports (check the app for other markets).
Are ProphetX and Kalshi both regulated?
Both operate under CFTC-regulated frameworks: Kalshi as a designated contract market, ProphetX as a CFTC-licensed prediction market operating in 49 states plus D.C. Product availability and account eligibility still apply on each.
Which has better sports coverage?
ProphetX is built around sports, so its board is deeper and more granular across NFL, NBA, MLB, NHL and soccer. Kalshi lists sports contracts alongside politics, weather and economics.
Which welcome offer is better?
ProphetX asks less up front: trade $50 and get $75 with code FLPREDICTS. Kalshi's offer is trade $25 and get $25 with the same code. Both are new-user offers with their own terms.
Can I use both from Florida?
Yes, and many Florida traders do. ProphetX covers the sports board, Kalshi covers hurricane season and macro on desktop, and Polymarket US remains our #1 for overall breadth.
Which one lets me exit a position?
Both use order-book pricing, so a contract can be sold before the event settles when there is liquidity on the other side.
Already have Kalshi? Add a second app
- OG: Trade $25 Get $50 in Rewards! (New users only) (code
FLPREDICTS) · 42 states + D.C. Claim on OG (opens in a new tab)
Paid partnership with OG. Terms and conditions apply. Trading derivatives involves risk and may not be appropriate for all. Availability subject to jurisdictional limitations. For more information, visit: OG.com. - ProphetX: Trade $50, Earn $75! (code
FLPREDICTS) · 49 states + D.C. Claim on ProphetX (opens in a new tab)
New users only. T&Cs apply. ProphetX's minimum age is 18 (or the local age of majority if higher); we recommend 21+. Not available in Nevada. Trading involves risk.
21+ · T&Cs apply · 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.
