For this focus on his swing and not on the number of strokes already played.
We are here to play and not to do math, here is a very intuitive scorer who will make your life easier on the course. It will record the score for four players simultaneously on a 9 or 18 holes.
At the end of the course, a summary of all the different shots of players, is presented in a scorecard.
You can also try the app ScoreCard
and always without advertisements or eccentrics authorizations