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Fliff is the largest social sportsbook in the United States, operating under a sweepstakes model that allows users to make sports picks without traditional sports betting licenses. Launched in 2022 by Sport & Social Group Pty Ltd (Australia), Fliff rapidly grew to millions of users.
Fliff uses Fliff Coins (play currency) and Fliff Cash (sweepstakes currency redeemable for prizes). The platform covers major US sports including NFL, NBA, MLB, NHL, and college sports, offering point spreads, moneylines, and over/under picks. Available in most US states, Fliff has become the model for the emerging social sportsbook category.
Editor's Verdict
Fliff built the social sportsbook category from scratch and still leads it — the most users, the most markets, and the most prizes available through the sweepstakes sports pick format.
Last reviewed: February 2026 · BonusBell Editorial Team
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