Online casinos have come a long way from their land-based counterparts and now there are hundreds of online casinos that focus on various casino games. At the beginning of online casinos, the players could access the casinos only through their computers and laptops but with the rise of smartphones, the online casinos started developing their casino games keeping in mind their availability of smartphones. Since there is huge competition among the various online casinos, the best online casinos are trying to make the previous casino games compatible with all kinds of mobile devices and it is estimated that by the end of 2021, almost 59% of the online casino market will be of smartphones, both android and iPhones, and tablets.