Browser-based gaming is so much cleaner nowadays anyway since it doesn't waste internal storage space. Plus, you get instant access to the full desktop game library without missing out on software updates.
You don't need to download any separate app because their entire web platform uses full mobile optimization. Navigation tabs are touch-friendly, games auto-adjust to screen orientation, and deposits work seamlessly on mobile browsers. Check out https://casinomarriott.org/ mobile compatibility guides to see supported browsers and feature overviews. I do almost all my routine spins on my phone without seeing any performance dips.
Does Casino Marriott have a dedicated mobile app for iOS and Android, or do you just play through Safari/Chrome? Want to know if the browser version holds up well on smaller screens.