Health App comes with iOS8 and above.
After finishing your round, in the Round Summary screen, you will see the Health Information section at the bottom.
Tap the Authorize button and activate the 6 category toggles to allow Health and Hole19 to share information.
After tapping 'Done', you will see Health Information appear on the Round Summary. Insert your Weight in the third row to see Calories Burned and Weight Lost during your round.