Generally speaking, I use the app.

I do, however, have miscellaneous tablets that are in rooms to show information and have a designated account just for that room's controls. I also have a wall-mounted touch panel that was from a pro control system that I picked up cheap that I rooted and set HA to open at boot, but I don't recommend this route unless you happen to get/see one cheap and know exactly what can/can't be done with it.