FanDuel casino apps exist for both Android and FanDuel casino iOS app devices, so it's important that you download the correct one. The links to the direct download of these apps can be found in the footer of the FanDuel website, no matter what page you are on. These apps mean you can enjoy a seamless gaming interface, and you can toggle back and forth between the casino and the sportsbook in the same FanDuel online casino app.