Iphone 5 or ipad 3, no tapatalk, safari
This, but with tapatalk on both and using chrome to surf. They both have their advantages and disadvantages between each other. I'd almost use tapatalk exclusively to view the boards if all gifs, smilies and embedded vids always worked properly. None of the custom smilies work on tapatalk and embedded vids don't play sound for some reason most of the time until I open the in either the browsers or YT app. Tapatalk definitely makes for faster reading and showing updated threads tho.
For some reason the boards now ALWAYS have pop-up ads no matter what I try to do to rectify that (clearing cache, app and full phone reboots, turning on off and on again pop up blocker and JavaScript options, etc.), at least with Chrome. I don't use Safari much anymore, so I don't know if the same happens there.