The TLO App can be added to your mobile device so that you can directly access the site outside of a browser. I have installed it on my iPhone and found it to be a fast and clean version of the mobile browser with both full web features an optional features such as notifications. In your mobile browser, select the main menu (three horizontal lines at the upper left of page), and click on Install App. It is a Progressive Web App (PWA), so it functions as an app but pulls web resources and content, so there is no significant impact to device storage.
To install it on your computer, the process varies by OS and browser, so I suggest that you Google "how to install Xenforo web app from safari/chrome/edge (select your browser). If the result is not sufficient, add a reference to PC or Mac. For me, my first impression of the computer app advantages (if any beyond notifications) do not overcome the formatting and convenience of a direct browser on a computer. The mobile app is quite nice, however, and I have opted to use it as my default on my phone and tablet.
To install it on your computer, the process varies by OS and browser, so I suggest that you Google "how to install Xenforo web app from safari/chrome/edge (select your browser). If the result is not sufficient, add a reference to PC or Mac. For me, my first impression of the computer app advantages (if any beyond notifications) do not overcome the formatting and convenience of a direct browser on a computer. The mobile app is quite nice, however, and I have opted to use it as my default on my phone and tablet.