Legality in the US
Both are federally-regulated and legal for US residents. Kalshi operates as a Designated Contract Market directly. Crypto.com's event contracts are offered through OG, a federally-regulated venue.
Markets and coverage
Kalshi has the broadest coverage — sports, politics, economics, culture, weather, crypto. Crypto.com's event contract coverage is narrower, focused on sports, crypto markets, and select macro events. For politics and broad cultural coverage, Kalshi is clearly deeper.
Pricing & fees
Both charge per-contract fees competitive with other federally-regulated event-contract platforms. Effective cost is similar. Kalshi's fee structure has been more publicly documented over a longer period; Crypto.com's is disclosed at order entry.
User experience
Kalshi's interface is purpose-built for prediction markets — clean, finance-forward, focused. Crypto.com's event contracts live inside a broader app that handles crypto trading, staking, and payments. The right answer depends on whether you want a focused trading app or a multi-product ecosystem.
Who should use which
Use Kalshi if: you want maximum market coverage, you want a dedicated prediction market app, you value the longest regulatory track record. Use Crypto.com if: you already use Crypto.com for crypto trading, you want event contracts inside an app you already check, or crypto-related event markets are your primary interest.