California Prediction Markets: Best Prediction Market Apps in CA

California prediction markets have grown in popularity because the state lacks licensed betting options. Many platforms operate legally even without state licensing, the article says, due to a federal designation. It lists several major apps available in California, highlighting how they differ. Novig launched in August 2026 and focuses exclusively on sports with live trading and restricted participation to users 21+. Polymarket re-launched in the U.S. in January 2026 after receiving CFTC designation, using blockchain-based peer-to-peer markets across sports, politics and crypto. Kalshi has been a CFTC-designated contract market since November 2020 and trades “Yes” and “No” contracts tied to resolution sources. The article also mentions OG.com and a fragment starting “ProphetX,” without details.