Checking whether the Canadian mobile operator is licensed is rather easy. In most cases, the license should be displayed in a place where you can see it, but you can always visit the FAQ section of the app to read extra details about it.
Alternatively, you can visit the official website via your mobile or desktop browser and scroll to the bottom of the home page. Every casino is required to list all its details at the bottom. It is also worth visiting the official website of the regulator to double-check the information.