It is possible to run League Dominator on a mobile device browser.
The League Dominator app works through mobile safari or mobile chrome browsers, on mobile phones, and tablets. If you are a premium subscriber, you can therefore use it for free on mobile devices. You go to your browser and navigate to league.footballguys.com. You can't use the stand-alone app for free if you are a subscriber. If you want that, you have to purchase the League Dominator app separately.