Hello it is a caddie.
This application program uses GoogleMap in the golf course in the whole country, and is an application program that examines the distance to green, and examines the distance of a jump of the club that I am using.
Please measure distance of a jump to confident of the driver by all means.
In golf, a caddy (or caddie) is the person who carries a player's bag and clubs, and gives insightful advice and moral support. A good caddy is aware of the challenges and obstacles of the golf course being played, along with the best strategy in playing it. This includes knowing overall yardage, pin placements and club selection. A caddy is not usually an employee of a private club or resort. He is classified as an "independent contractor," meaning that he is basically self employed and does not receive any benefits from his association with the club. Some clubs and resorts do have caddy programs, although benefits are rarely offered. Particularly in Europe, the vast majority of clubs do not offer caddies and amateur players will commonly carry their own bags.