GreenScanner

GreenScanner turns your iPhone's LiDAR scanner into a green-reading tool. Walk the line between your ball and the hole, and GreenScanner builds a three-dimensional map of the surface you just scanned. HOW IT WORKS Point the phone at the green and walk slowly along the putt. The LiDAR sensor measures the surface many times a second, and GreenScanner combines those measurements into a single height map, averaging away sensor noise as it goes. A live coverage map shows which parts of the corridor you have already captured, so you can see where to walk next. WHAT YOU GET - A 3D model of the green you can rotate, zoom and tilt - Slope shading, from flat green through to steep red - Contour lines at an interval you choose - Vertical exaggeration, to make subtle undulation visible - A simulated putt across the mapped surface, with a suggested line and starting speed - Automatic proposals for the ball, the hole and the flagstick, each one a suggestion you confirm or move with a tap rather than a silent guess - A scan library that groups your greens by course ABOUT ACCURACY GreenScanner is a practice and visualisation aid, not a measuring instrument. Consumer LiDAR has real limits, especially on grass, so treat slope figures as indicative rather than exact. The app is at its best showing you the shape of a green, where it falls away and where it rises, to sharpen your own read. It is not a substitute for reading the green yourself. Note that slope-measuring devices are restricted under the Rules of Golf and are not permitted in competition unless a Local Rule allows them. Please check before using GreenScanner in a competitive round. PRIVACY Your scans stay on your device. GreenScanner does not track you, and contains no advertising, no analytics and no third-party SDKs of any kind. When you save a scan, its coordinates go to our course service to work out which green you are on, and nothing else is sent. REQUIREMENTS An iPhone with a LiDAR scanner, running iOS 18 or later.