I use MacOS, iOS, Linux and Windows, and only one of the above has never shown me ads. At one point MacOS and iOS were on the list, but now like Microsoft they push their own services (apple news, appletv, icloud, etc) and also like Microsoft, inject low quality ads into their app store search results. Apple still seems a bit better vs MS on how in your face they are, but I would not be shocked to see Candy Crush(TM) pinned to my home screen one day.