Scroll down to discover the top 10 best slots apps in 2023. If you are short on time, we regard the Casumo Casino app as the best one.įor many experienced and new slots players, there is a lot to be said about an online casino or slot site which comes with its own downloadable app. These apps simply make it quicker and easier to play casino games via your mobile phone. Casino apps are applications which you can download on your phone in order to be able to access your online casino account in just one click.