RTP stands for Return To Player. Expressed in percentage terms it represents the amount, on average, over time, players should expect to win back from any given game. We allow real-money gambling apps, ads related to real-money gambling, loyalty programs with gamified outcomes, and daily fantasy sports apps that meet certain requirements. With so many apps competing for attention, we’ve taken the time to test and rate the best mobile casinos in the UK. These are the ones that actually deliver — real-money wins, smooth gameplay, and proper mobile-only offers. Every recommendation has been checked and verified by the team at BritishGambler.co.uk. © 2026. Must be 21 years of age or older to gamble unless otherwise noted. Must be 18 years of age or older in Florida to participate in Poker. Seminole Gaming offers PlayersEdge information to its patrons to encourage responsible gaming at all participating locations. Bet with your head, not over it. Gambling problem? Call or text 1-833-PLAYWISE.