$250 Back in Bonus Bets if your First Bet Doesn’t Win We’ve also included each sportsbook’s current welcome offer and our overall rating of their platform. These include industry leaders DraftKings, FanDuel, Caesars, BetRivers and Bet365. Top 5 New Jersey Betting Appsīelow, you will see a table featuring the five top sportsbooks vying for the title of best sports betting app New Jersey. We’ve also identified five great welcome promotions offered by New Jersey sportsbooks for you to claim if you’re a new user. If you are ready to start your betting journey today, you can sign up for a new account right now. We’ve performed comprehensive research to produce reviews for the best New Jersey sports betting apps and the top New Jersey betting sites. You have an abundance of choices as New Jersey features 19 online sportsbooks and 12 retail sportsbook locations. The Garden State legalized sports betting on June 11, 2018, and launched just a couple months later in August. New Jersey leads the way when it comes to sports betting.