UI and Menu Design
Both are designed for a small screen, but they have their distinct character. The app’s layout often borrows more elements from your phone’s native style. Menus and buttons might use familiar gestures. The mobile site gives you a version of the main desktop site, compressed and restructured for your phone. If you go between your computer and your phone often, this uniformity is helpful. In practice, opening the app might cut a bit of time off repeated tasks, but for the fundamentals—making a deposit, finding a game, contacting support—the mobile site is every bit as quick.