Start a new round, tap the quick score box to enter the score. 

To enter the score for multiple golfers, tap the player icon in the lower left.

Scroll down to add totals and putts for all players. Tap on the total score twice to clear it. 

To switch between holes, swipe left/right or use arrows at the top.

Tap 'MORE' to add penalties, select fairway hit, miss direction or sand shots. 

Click this link to read about the other ways of keeping score: Ways to keep score

See how to track shots: Tracking shots on the phone (step-by-step tutorial)