How Android players actually get in
Open the site in Chrome and use it directly. Google Play does not carry real-money casino apps for most Canadian provinces, so there is no official listing to install. Adding the page to your home screen gives you an icon that behaves like an app without downloading anything.
Add to home screen in four taps
Open the site in Chrome, tap the three-dot menu, choose Add to Home screen, confirm. The shortcut launches without the browser bar, which is the only visible difference between this and a native app.
A word on APK files
Sideloaded gambling APKs from third-party sites are the single most common way Android players hand over their casino credentials. If you did not download it from the operator's own domain, treat it as untrusted - the APK page covers this in detail.
General mobile behaviour is on the app overview.