Why people leave Kalshi

The most common reason is geography. There are currently nine states where Kalshi is unavailable and/or limited, with sports trading prohibited outright in Michigan, Nevada, and Ohio. Other trackers put the number closer to five or eight depending on how recently the litigation moved. Massachusetts sued Kalshi directly, and in January 2026 won a preliminary injunction blocking the company from offering sports contracts there unless it complies with the state's sports gaming law. Arizona's case went the other direction: the state filed criminal charges against Kalshi, but a federal judge later paused the case and temporarily blocked the state from enforcing its gambling laws against the company.

Availability varies by jurisdiction, and the fact that a platform showed up in a search last week doesn't mean it's cleared for your address this week. The second reason is fees, taker and maker spreads differ meaningfully across platforms, and the gap compounds on anyone trading more than a handful of contracts a month. The third reason is market mix: Kalshi leans toward economic data, elections, and culture tickers, while sports liquidity, peer-to-peer pricing, or crypto-funded accounts are often better served elsewhere.

Alternatives ranked by use case

  • US traders wanting the closest Kalshi-style exchange: Polymarket, which built the largest prediction market internationally and returned to the US through CFTC-regulated Polymarket US, launched December 2025
  • Sports-first trading: Novig, offering zero-fee pregame trades and live in-game markets
  • Parlay-style sports contracts: ProphetX, a peer-to-peer exchange built around custom parlays
  • Sportsbook-familiar interface: FanDuel Predicts, best for beginners coming from a traditional sportsbook background
  • Crypto-native funding: Crypto.com or Gemini Predictions, brokerage-style accounts with crypto deposit rails
  • Niche or social-flavored markets: OG.com, with a friendly user experience and strong social integration

None of these are a straight upgrade on Kalshi in every category. Polymarket wins on liquidity and brand recognition, Novig wins on fee structure for sports traders, and OG wins on vibe over volume. Pick by the column that matters to you, not by whichever name shows up first in a search result.

Fee and payout comparison

Prices on live markets move by the minute, so here's how the structural costs compare on a tested fee table: Polymarket charges up to $1.50 per 100 contracts, Novig up to $0.75, ProphetX up to $1.00, OG.com up to $1.75 (plus $1.99 bank withdrawals), FanDuel Predicts up to $2.00, and Crypto.com up to $1.75 (plus $1.99 bank withdrawals). None of them charge a maker fee.

On a $1 position, these differences barely register. On a few hundred dollars spread across a season of markets, the spread between Novig's roughly seventy-five cent fee and FanDuel Predicts' two-dollar fee on the same 100-lot size adds up fast. Treat any specific payout you see quoted anywhere, including on this site, as a snapshot, not a promise.

Platform features at a glance

Kalshi and Polymarket both offer charting/order-book tools and API access alongside mobile apps. Novig and ProphetX have apps with limited desktop tools and no API. FanDuel Predicts and OG.com are mobile-first with no desktop tools or API. All six let you browse markets without an account. Apps that feature limit orders include Kalshi, Polymarket, Novig, ProphetX, and Crypto.com, if order-type control matters to how you trade, that shortens the list considerably before you even get to fees.

How to pick your Kalshi alternative

  • Are you in a state where Kalshi's sports contracts are currently restricted or disputed? Check availability before assuming any named alternative is cleared for you either, several states have active lawsuits against more than one platform at once
  • Do you want to fund with crypto, or strictly fiat? Crypto.com and Gemini Predictions lean crypto-forward; Polymarket, Novig, and FanDuel Predicts are fiat-first for US accounts
  • Are you chasing longshot payouts or hedging a position you already hold? Peer-to-peer exchanges like ProphetX let you set your own price
  • Do you need an API or desktop charting, or are you trading from a phone during a game? That alone rules out two or three names from the table

Frequently asked questions

What is the best Kalshi alternative for sports trading?

Novig, for its zero-fee pregame trades and live in-game markets, with ProphetX as a peer-to-peer option for custom parlays.

Is Polymarket a good Kalshi alternative in the US?

Yes, Polymarket US launched in December 2025 as a separate CFTC-regulated exchange, making it the closest Kalshi-style option for US traders in terms of liquidity and brand recognition.

Which Kalshi alternative has the lowest fees?

Novig, at up to $0.75 per 100 contracts, compared to FanDuel Predicts at up to $2.00 for the same size.

Which Kalshi alternatives support crypto funding?

Crypto.com and Gemini Predictions are the crypto-forward options, offering brokerage-style accounts with crypto deposit rails alongside event contracts.