Polymarket vs ProphetX
The world's deepest all-topic prediction market against America's sports-native exchange. Different jobs, and most traders end up with both.
Polymarket US · Deposit $10 get a $25 Trading Bonus!
21+ · T&Cs apply
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.
Quick answer
Use Polymarket for politics, news and culture contracts and the smallest deposit for a welcome credit — $25 on a $10 deposit with code VENICE, 18+. Use ProphetX for sports on any device — iPhone, Android or web — with $75 in credit for a $50 qualifying trade, 21+, in 49 states plus D.C. Both are CFTC-regulated order books where you trade against other traders and can sell out before an event settles.
Polymarket US · Deposit $10 get a $25 Trading Bonus!
VENICE
Claim on Polymarket US (opens in a new tab)
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.
Last checked October 21, 2026
| Polymarket | ProphetX | |
|---|---|---|
| Welcome offer | Deposit $10, get $25 — code VENICE | Trade $50, get $75 — code VENICE |
| Market focus | Politics, news, sports, crypto, culture | Built around sports: games, futures, player contracts |
| Devices | Polymarket US app | iOS, Android and web |
| Coverage | 49 states + DC | 49 states + DC (not Nevada) |
| Minimum age | 18+ | 18 (or the local age of majority if higher); we recommend 21+ |
| Liquidity strength | Deepest global books on politics and news | Concentrated entirely in sports |
| Regulation | CFTC-regulated exchange and clearing organization | CFTC Designated Contract Market and Derivatives Clearing Organization |
| Who sets the price | Other traders (order book) | Other traders (order book) |
| Exit before settlement | Yes — sell any position anytime | Yes — sell any position anytime |
Best for sports on any device
ProphetX · Trade $50, Get $75
Claim on ProphetX (opens in a new tab)ProphetX promo details →Also compare ProphetX vs Kalshi and Kalshi vs Polymarket.
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.
21+ Only. New users only. Restrictions and eligibility requirements apply — ProphetX is not available in Nevada. ProphetX is a CFTC-regulated Designated Contract Market and Derivatives Clearing Organization; it is not a sportsbook. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider whether it is appropriate for you in light of your personal financial circumstances. See prophetx.co for full terms and conditions.
Frequently asked questions
Polymarket or ProphetX — which is better?
Which welcome offer is worth more?
Can I use Polymarket and ProphetX together?
Does ProphetX have politics markets?
Are both available in California?
21+ · T&Cs apply · Terms
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.