Compare prediction market apps

By Jeremy BraginLast updated: How we score

Every comparison here uses the same facts and scoring as our ranking of 15 apps. 10 of them own or control the exchange they list on. The other 5 are brokers that route your order elsewhere. Kalshi vs Polymarket is the comparison most people search for.

Head-to-head comparisons

Each comparison puts two apps side by side. It covers fees on the same $100 trade, who holds your cash, state status and which one to pick.

Kalshi vs PolymarketFor most Americans, Kalshi. It has been CFTC-regulated since 2020, takes ten funding methods and pays interest on idle cash. Pick Polymarket US if you want Polymarket's markets in a regulated US app. It takes card, bank or wire. Both charge takers almost the same fee.Read the comparison →

Kalshi comparisons

Polymarket comparisons

Sportsbook and brokerage apps

Kalshi alternatives: apps like Kalshi

Kalshi ranks first of 15 on our method, at 4.9 out of 5. The alternatives split two ways. Some apps sell Kalshi's own contracts in their app. Others run a separate exchange with their own markets.

Apps that trade Kalshi's own markets

For a Kalshi-listed contract, the contract is the same and trades on Kalshi's order book. The fees, funding, custody and app are what differ.

  • Interactive Brokers 4.4 / 5, #5 of 15

    Routes some orders to Kalshi’s exchange, among others.

  • Robinhood 4.3 / 5, #6 of 15

    Routes some orders to Kalshi’s exchange, among others. Kalshi vs Robinhood.

  • Coinbase 4.1 / 5, #8 of 15

    Routes orders to Kalshi’s exchange.

  • Webull 4.0 / 5, #9 of 15

    Routes orders to Kalshi’s exchange.

  • PrizePicks 2.7 / 5, #14 of 15

    Routes orders to Kalshi’s exchange.

  • Underdog Predict 2.6 / 5, #15 of 15

    Routes some orders to Kalshi’s exchange, among others.

Other exchanges with their own markets

  • Gemini Predictions 4.7 / 5, #2 of 15

    Best for existing Gemini crypto customers.

  • Polymarket US 4.7 / 5, #3 of 15

    Best for trading Polymarket from the US, on a CFTC-regulated exchange. Kalshi vs Polymarket.

  • OG 4.6 / 5, #4 of 15

    Best for trading directly on the exchange behind Crypto.com’s markets.

  • ProphetX 4.3 / 5, #7 of 15

    Best for paying commission only on net gains.

Polymarket alternatives: apps like Polymarket

For Americans, the first alternative is Polymarket's own US app. The crypto site, polymarket.com, is close-only from the US. Polymarket US runs a separate, CFTC-regulated exchange, and scores 4.7 on our method.

Beyond Polymarket, these rank highest on the same method:

  • Kalshi 4.9 / 5, #1 of 15

    Best for all six market categories, traded on the exchange itself. Kalshi vs Polymarket.

  • Gemini Predictions 4.7 / 5, #2 of 15

    Best for existing Gemini crypto customers.

  • OG 4.6 / 5, #4 of 15

    Best for trading directly on the exchange behind Crypto.com’s markets.

  • Interactive Brokers 4.4 / 5, #5 of 15

    Best for comparing ForecastEx, Kalshi and CME prices in one account.

Every app, every attribute

All 15 apps in our ranking, on the facts they publish. Each name links to its full review.

#AppScoreStructureFee on $100 at 50¢FundingPublic prices
1Kalshi4.9Own exchange$3.50bank, card, wire, wallet apps and crypto✓
2Gemini Predictions4.7Own exchange$3.50bank, wire and wallet apps✓
3Polymarket US4.7Own exchange$3.48bank, card and wire✓
4OG4.6Own exchange$3.50bank, card, wire, wallet apps and crypto✓
5Interactive Brokers4.4Own exchange$2.00 to $4.00bank, wire and crypto✓
6Robinhood4.3Own exchange$2.00 to $4.00bank, card and wire✓
7ProphetX4.3Own exchange$2.00 if it wins, $0 if notbank, card, wire, wallet apps and crypto✓
8Coinbase4.1BrokerRate not publishedbank, card, wire, wallet apps and crypto✓
9Webull4.0Broker$4.00bank, card and wire✓
10Novig3.9Own exchange$0.00 to $5.00bank, card, wallet apps and crypto✓
11DraftKings Predictions3.8Own exchangeUp to $4.00Not published✓
12Fanatics Markets3.7BrokerUp to $4.00bank, card, wire and wallet apps✓
13FanDuel Predicts2.8Broker$4.00bank, card and wallet apps✗
14PrizePicks2.7Broker$4.00bank, card and wallet apps✗
15Underdog Predict2.6Own exchange$2.00 + exchange feebank, card and wallet apps✗

Scores follow our published method, from each app's own pages. “Own exchange” includes an exchange the app's company controls.

What differs between prediction market apps

Exchange or broker. 10 apps own or control an exchange. The rest pass your order to someone else's, often Kalshi's, and add their own fee.

Fees. Exchanges such as Kalshi charge on a curve that peaks at 50¢. Brokers usually charge a flat amount per contract, which costs most on long shots. See fees on the same $100 trade.

Funding. Some apps take a debit card, PayPal or Venmo. Others take only bank transfers or wires, and a few take crypto.

States. Every app here is federally regulated, but states contest sports contracts. Some apps skip sports where their parent runs a sportsbook. See where prediction markets are legal.

Public prices. 12 of 15 show live prices without an account. Only those that publish a feed can be priced side by side, on our live prediction market odds.

How we make money

CoinStats may earn a commission if you open an account through links on our pages. No app pays for its score or its place in a comparison: both come from the same published method.

Prediction market comparisons: FAQ

What is the best alternative to Kalshi?

Gemini Predictions ranks highest among the other exchanges, at 4.7 out of 5. To trade Kalshi's own markets in another app, Interactive Brokers, Robinhood and Coinbase route orders to Kalshi's exchange.

What is the biggest competitor to Polymarket?

Kalshi is its closest rival. Both run CFTC-regulated US exchanges, list every major category and publish their prices.

Is Polymarket or Kalshi better?

For most Americans, Kalshi. It has been CFTC-regulated since 2020, takes ten funding methods and pays interest on idle cash.

Are prediction market apps legal in the US?

All 15 apps in our ranking are CFTC-regulated, directly or through a broker. Several states contest their sports contracts, and a few have court orders against some apps.

Which prediction market apps publish their prices?

Kalshi, Gemini Predictions, Polymarket US, OG, Interactive Brokers, Robinhood, ProphetX, Coinbase, Webull, Novig, DraftKings Predictions and Fanatics Markets show live prices without an account. The rest keep prices inside their apps.

How do you score the apps?

On six criteria, each scored 0 to 5 from what the app publishes: regulation, live prices, markets, funding, published fees and state availability.