This is a simple Apple Watch app to help you keep score for club volleyball games. To increase a score, simply tap the score box. If you make a mistake, tap the "Add" button, which turns it into a subtract button and the next score you tap is reduced by one. When the match is over, tap the "new" button to reset the scores to zero.

If you want to change the colors of the score boxes, swipe that screen to the left, where you can choose different score box colors. The most common colors used in club volleyball are available. Just tap the colors you want for each box. When done, swipe to the right and continue keeping score.