One tap per rally. Games, deuce and the 30-point cap are handled for the umpire.
Illustration · a badminton match on the live stream and the scorer
The scorer taps who won the point. 1SCOR works out the rest and shows it on arena TV, the stream and the player app.
Every rally scores a point. The game closes itself at 21.
At 20-all, play goes on until one side leads by two.
At 29-all, the next rally wins the game.
Server and service court follow the score: right on even, left on odd.
Worked out from the score itself, the same way on TV, stream, event page and player app.
Club nights, academy ladders or open tournaments.