To download a mobile casino game, head to the App Store or Google Play Store (whichever is relevant to your OS). Since these stores lifted their restrictions on real money gambling apps, several casinos have injected their apps into those ecosystems. In the unlikely scenario where a casino app isn’t available on the App/Play Store, check out the online casino’s website for links to download and install it from the site. Make sure the casino can be trusted, and you’re not downloading malicious apps to your device.