It up to you if you want to download app. But in all honesty get on the web and join there program and you get rewards %off your tickets. right when I did that I got 10% off my ticket just for joining there program.
The app is not cheaper. Go in person.
Online! Download the app and it's way cheaper. You don't need to print it out just show the driver.
Thanks! Your answer is awaiting moderation.