A sportsbook is a gambling establishment that accepts bets on various events. They offer odds on those events based on their probability of happening and allow gamblers to bet on the outcome of the event, either by backing it to win or against it. The lower the probability of something occurring, the less risk it will carry and the higher the return is expected.

The first mistake is not including customization in your product. This can be a major turn off for users as it makes the experience feel generic and not tailored to their needs and expectations. You want to offer them a personalized gambling experience and this means that they need to be able to customize their betting options and markets.

Another mistake is not making the registration and verification process easy and intuitive. This can be a huge turn off for your users and you need to make sure that it is fast, efficient and secure. Also, it is important to have a good KYC solution that allows users to submit documents without hassle and store them with the utmost confidentiality.

It is also important to remember that a sportsbook is a product like any other and therefore it needs to be designed with UX and design in mind. If your app is difficult to use or not intuitive, your users will quickly get frustrated and will look for alternatives. That is why it is vital that you work with a partner who understands this and can help you create an amazing user-friendly sportsbook that will keep your users coming back for more.