Golfshot - Golfshot is the #1 provider of pre-mapped aerial image courses.
Topgolf - Golf driving range with point-scoring games for all levels
Disc Golf Metrix - Live scorecard and statistics for disc golf
Golfler - On-course, on-demand
UDisc - UDisc can keep score, measure throws, find courses, and track stats. UDisc Cloud syncs scorecards between the players on your card.
Vice Golf Balls - Doing for golf what Harry's did for shaving