Big screen
Show on TV
Put this scoreboard on a TV, projector or laptop. This phone stays the remote; the big screen follows every tap. As many screens as you like can show the same game.
Casting: the display is a normal web page. Open it in the TV's browser, cast that tab from Chrome (menu → Cast → Cast tab) or mirror the laptop with AirPlay. Codes stop working a few hours after the last score.