Prediction market platform guides for California

Reviews and deep-dives on every CFTC-regulated platform California traders can use.

Updated

Plain-English guides to Kalshi, Polymarket US, ProphetX, OG and the other apps people ask about: what each one offers, fees, payment methods and whether it works in California. For our ranked shortlist, see the platforms page.

Guides

What Is Novig? A California Trader's 2026 Guide

Novig is a peer-to-peer sports exchange built for traders who've been limited or banned by sportsbooks. No house, no winner limits, tight pricing set by other traders. Here's what it offers and whether a California trader should use it.

Catie Di Stefano

Guides

What Is Sleeper? A California Trader's 2026 Guide

Sleeper is a fantasy and pick'em sports app with a large existing sports community. Here's what makes it different, who it's for, and what a California trader who wants a CFTC-regulated exchange should use instead.

Catie Di Stefano

Guides

What Is Chalkboard? A California Trader's 2026 Guide

Chalkboard is a pick'em-style app built almost entirely around player props: LeBron's points, Steph's threes, Mahomes' passing yards. Here's what it does, who it's for, and what a California trader who wants a CFTC-regulated exchange should use instead.

Catie Di Stefano

Guides

What Is Rebet? A California Trader's 2026 Guide

Rebet is a social sweepstakes sportsbook built for people who want to share picks and play alongside friends. It isn't available in California. Here's what it does, who it's for, and what Californians can use instead.

Catie Di Stefano

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