Bet365 Review Bet365, a long-time stalwart in the European betting market, has made its way to the United States, starting in New Jersey, where the book takes mobile wagers. Below, we’ll detail some of the best bonuses, promo codes and features offered by bet365. bet365’s app doesn’t have a lot of bells and whistles, but it doesn’t need ’em. It’s clearly an app built for bettors, by bettors. The sportsbook’s offer to new customers ($100 in free bets) leaves a lot to be desired, though.