Sportsbook featuresĪ beautifully crafted sports betting app must also deliver what bettors crave most: All of the features they would expect to enjoy when wagering at online sports betting sites or at a retail sportsbook. Users should expect an enjoyable, mobile-optimized journey, including smooth navigation, large buttons, and fast load times. These online sportsbook apps should provide bettors with a superior betting experience than they would otherwise find using a browser and visiting a sportsbook’s website. Mobile sportsbook apps are developed with the user in mind. Here's what we look for in mobile sports betting apps: User experience A great online sports betting app has a wide range of features optimized for quick, reliable, on-the-go wagering.