What is a prediction market app?

It's an exchange where you buy and sell contracts on whether an event happens. A contract settles at $1 if you're right and $0 if you're wrong, so its price is effectively the market's odds. Instead of taking a number a sportsbook sets, you're trading against other people.

Which prediction market has the best sign-up offer?

The offers above are ranked and updated as platforms change them, so the top card is the strongest current promotion. Offer values move around, and the largest headline number is not always the easiest to unlock — check the terms under each card before you deposit.

Do I need cryptocurrency to use these?

Not for the US-regulated platforms. Kalshi, Polymarket US and the other CFTC-regulated exchanges take bank transfers and debit cards. The international version of Polymarket is the one that runs on crypto.

Can I sell a position before the event finishes?

Yes, and it's the biggest practical difference from a sportsbook. If you bought at 40¢ and the price moves to 70¢, you can sell then and take the 30¢ rather than waiting on the final result.

Are prediction markets available in my state?

Availability differs by platform and changes often, which is why this page ranks platforms rather than filtering by state. The CFTC-regulated exchanges are federally licensed and broadly available; check the platform’s own site for its current list before signing up.

Can I use a prediction market and a sportsbook at the same time?

Plenty of people do. Holding accounts on both lets you take whichever side is priced better on any given market, and when the two disagree far enough there can be an arbitrage between them.

Best Prediction Market Sites & Apps (2026)

How we rank prediction market apps

Regulatory standing — whether the platform operates as a CFTC-regulated exchange, and who holds your funds.
Market depth and liquidity — how many events are listed, and whether you can get filled at the posted price in size.
Fee structure — trading and settlement fees, which matter more than headline pricing once you trade often.
Funding — whether you can deposit by bank transfer or debit card, or need a crypto wallet to get started.
Sign-up offer — the value of the current new-account promotion and how hard it is to unlock.

The platforms, compared

Kalshi

The broadest market selection of any US exchange — sports, politics, economics, weather and culture all on one book. Regulated by the CFTC as a designated contract market, with bank and debit funding and no minimum balance.

Polymarket US

The CFTC-regulated US entity of the largest prediction market in the world. It carries the deepest liquidity in the category and a growing sports slate alongside its politics and economics markets. The US version takes standard deposits — no crypto wallet needed.

Novig

A sports-focused exchange built around not limiting winning accounts, which is why it has a following among bettors who have been cut off elsewhere. You trade against other users rather than a book, so pricing tightens as volume grows.

ProphetX

A peer-to-peer sports and events exchange. Market coverage is still filling out relative to the larger platforms, but the exchange model means you can post your own price rather than accept a posted one.

Frequently asked questions

What is a prediction market app?: It's an exchange where you buy and sell contracts on whether an event happens. A contract settles at $1 if you're right and $0 if you're wrong, so its price is effectively the market's odds. Instead of taking a number a sportsbook sets, you're trading against other people.
Which prediction market has the best sign-up offer?: The offers above are ranked and updated as platforms change them, so the top card is the strongest current promotion. Offer values move around, and the largest headline number is not always the easiest to unlock — check the terms under each card before you deposit.
Do I need cryptocurrency to use these?: Not for the US-regulated platforms. Kalshi, Polymarket US and the other CFTC-regulated exchanges take bank transfers and debit cards. The international version of Polymarket is the one that runs on crypto.
Can I sell a position before the event finishes?: Yes, and it's the biggest practical difference from a sportsbook. If you bought at 40¢ and the price moves to 70¢, you can sell then and take the 30¢ rather than waiting on the final result.
Are prediction markets available in my state?: Availability differs by platform and changes often, which is why this page ranks platforms rather than filtering by state. The CFTC-regulated exchanges are federally licensed and broadly available; check the platform’s own site for its current list before signing up.
Can I use a prediction market and a sportsbook at the same time?: Plenty of people do. Holding accounts on both lets you take whichever side is priced better on any given market, and when the two disagree far enough there can be an arbitrage between them.