States can also determine whether to allow online casinos and daily fantasy sports sites. Those states passing legislation to legalize sports betting can choose to allow online sportsbooks, in-person betting at retail sportsbook locations, or both. laws allow states to individually choose their stance on legal online sports betting. Sports bettors in nearly 20 states can legally place bets on the FanDuel Sportsbook app and the FanDuel desktop site. FanDuel Sportsbook operates as the most popular online sportsbook in the U.S.
