Polymarket vs Kalshi vs MetaMask Prediction Markets: Where to Trade in 2026

Polymarket vs Kalshi vs MetaMask: At a Glance

For a primer on how prediction markets work, see what are prediction markets. For copy trading on Polymarket (and thus MetaMask), see copy trading in prediction markets and how to copy trade on Polymarket.

Polymarket: Availability, Fees, UX

Polymarket is the largest decentralized prediction market. You trade on politics, sports, crypto, and culture with crypto (e.g. USDC); resolution is on-chain or via oracles.

• Availability: Open in many countries; restricted in the US, UK, and several other regions. Check Polymarket’s terms and geo-blocking for your location.
• Fees: Trading and withdrawal fees apply; structure can vary. No KYC in many supported regions.
• UX: Web-based; you connect a wallet or use a Polymarket account. Order book, market pages, and portfolio in one place. Leaderboard data is public, so tools like HolyPoly can rank wallets and give copy-ready playbooks—you execute the same trades on Polymarket yourself.

If you want to copy top Polymarket wallets, use a leaderboard filtered by win rate and PnL and copy-ready playbooks.

Kalshi: Availability, Fees, UX

Kalshi is a US-regulated prediction market exchange. You trade with fiat (deposit/withdraw in USD) and need to complete KYC.

• Availability: Aimed at US users; you must be in a supported state and pass identity checks. Different legal and product model than Polymarket.
• Fees: Exchange fees on trades; deposit and withdrawal in fiat. See Kalshi’s fee schedule for current rates.
• UX: Web and mobile app; sign up with email, link a bank account, fund, and trade. Markets include politics, economics, weather, and events. No copy-trading tools in the same way as Polymarket (no public wallet leaderboard); you pick markets yourself.

Polymarket vs Kalshi: Choose Kalshi if you’re in the US and want a regulated, fiat venue. Choose Polymarket (or MetaMask Prediction Markets) if you’re in a region where it’s available and want crypto-based trading, more market variety, and the option to copy top wallets via leaderboards and playbooks.

MetaMask Prediction Markets: Availability, Fees, UX

MetaMask Prediction Markets lets you trade prediction markets inside the MetaMask mobile app. It’s powered by Polymarket—same markets, same liquidity, same resolution—with a simpler, in-wallet flow.

• Availability: Same restrictions as Polymarket (e.g. not available in US, UK, and various other countries). Check MetaMask and Polymarket for your region.
• Fees: You may pay a transaction fee to MetaMask and Polymarket (e.g. 4% on mobile in some cases). No extra fee when depositing, cashing out, or withdrawing beyond normal network and platform fees.
• UX: Open MetaMask app → Predict / Prediction Markets → browse and trade in two taps. Same order books as Polymarket. Good if you already use MetaMask and want to trade without leaving the wallet. Copy trading works the same conceptually: find top Polymarket wallets (e.g. via HolyPoly), get their positions and playbooks, then replicate those trades either on Polymarket.com or in MetaMask Prediction Markets.

So: can you use MetaMask for prediction markets? Yes—MetaMask Prediction Markets is a dedicated in-app experience for Polymarket’s markets. For more on copy trading across platforms, see copy trading in prediction markets.

Frequently Asked Questions

Is Polymarket or Kalshi better?

It depends on where you are and what you want. Polymarket is the largest decentralized prediction market (politics, sports, crypto, culture); it’s crypto-based and geo-restricted in the US and some other countries. Kalshi is US-regulated, fiat and KYC; better if you’re in the US and want a compliant venue. MetaMask Prediction Markets uses Polymarket’s liquidity inside the MetaMask app—same markets as Polymarket, different access (mobile, in-wallet).

Can I use MetaMask for prediction markets?

Yes. MetaMask Prediction Markets lets you trade prediction markets (powered by Polymarket) directly in the MetaMask mobile app—politics, sports, crypto, culture. You get the same liquidity and resolution as Polymarket; access is in two taps from the wallet. Not available in all regions; check MetaMask and Polymarket restrictions for your country.

What is the best prediction market platform?

The best platform depends on your location and preferences: Polymarket for global, crypto-based trading and the widest range of markets; Kalshi for US-regulated, fiat trading; MetaMask Prediction Markets for in-wallet access to Polymarket’s markets. For copy trading, Polymarket and MetaMask (same liquidity) have public leaderboards and tools like HolyPoly for copy-ready playbooks.