Lay your phone on the green. GreenReadr uses precision sensors to measure slope, calculate break, and give you the line — in seconds.
Download on the App Store
Three steps between you and a better read.
Lay your phone flat on the green surface near your ball. The sensors provide instant visual feedback.
GreenReadr captures the slope angle and direction using your phone's precision accelerometer and gyroscope.
Get a clear visual of the break direction and magnitude.
Aim, commit, and roll it in.
Tour caddies spend years learning to read greens. GreenReadr gives you sensor-grade slope data in real time — no guesswork, no plumb bobbing, no second-guessing.
Download GreenReadr and start making more putts today.
Download on the App Store