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Also Mobile gambling apps and websites became increasingly prevalent, allowing users to place bets and play casino games on their smartphones and tablets. The convenience of mobile gambling contributed to its expansion
countries make some positive work in this process to regulating online gambling to ensure consumer protection and generate tax revenue
Mobile applications offer great convenience to many users. However, casinos are likely weighing the costs and returns of developing and maintaining a mobile application since it is not free; it requires a significant investment of time and money. Most casinos nowadays are already responsive and user-friendly for mobile devices. You can verify this by checking reputable casinos, and you'll see what I mean.
That's why I believe that some of them may have decided not to develop an app, as they consider their website to be currently sufficient.