I recently stayed a couple nights at a nice “boutique” style hotel in Philadelphia that has no staff there most of the time. You get in with a keycode or an app

I recently stayed a couple nights at a nice “boutique” style hotel in Philadelphia that has no staff there most of the time. You get in with a keycode or an app (the app didn’t work). It’s sort of like an airbnb, but a hotel. Presumably they do have staff to clean the rooms, but only between visitors as far as I could see? We never saw any staff. There is a number to call.