The emergence of mobile-only casinos is a clear indication of development within the betting sector in tandem with the general progression of technology and society. The availability of mobile devices like smartphones has made it convenient for users to engage in gaming right from their mobile devices and this has led to the emergence of online casinos that are specially intended for mobile platforms. This evolution is altering the dynamics of the existing online betting market, thus opening new opportunities and risks for operators to identify and capitalize on. 

The first and probably the most crucial factor that led to the concept of mobile-only casinos is the growing usage of smartphones in daily life. Portability cannot be underestimated: the advantage of being able to play all the most popular types of games at any given time and in any place is certainly indisputable. As a result, there has been a rise in the number of mobile games, and more mobile casinos established than the traditional online-based casinos designed for PC use. The emphasis on mobile-centric design, optimized layout, and touch responsiveness improves its accessibility, which is especially important for fully mobile casinos. 

As we have seen above, the impact of this change is very significant for the betting market. Mobile-only casinos are making operators change their approach and focus on mobile responsiveness and mobile applications. The so-called traditional online casinos which do not follow this thing, which is more oriented towards the mobile, risk finding themselves in a market that is more and more saturated. In addition, the appearance of mobile-only sites has increased the focus on innovative game design, as software suppliers invent new games developed for mobile, which include simple controls, quick-to-load, and graphical interfaces. 

Nevertheless, the new wave of mobile-only casinos also comes with its own set of problems, including the question of regulation and tackling problem betting. Player protection and compliance with regulatory requirements for many legal systems might be a rather challenging task for mobile platforms due to their highly dispersed and quickly changing technological environment. 

Finally, it is possible to assert that mobile-only casinos are gradually becoming a trend that will affect the development of online betting shortly due to increasing customer needs for convenient and accessible services. This is setting a pace in the development of new games and putting pressure on the old-style operators to shift towards the mobile platforms indicating a future where the mobile platforms would rule the games. Mobile-only casinos are therefore expected to become more and more important as key to the future development of this industry.