GreenRead Pro
Golf Green Slope Measurement & Putting Line Reading Support
High-Precision LiDAR Measurement
No Account Required
All Data Stays on Device
Golf Green Slope Measurement & Putting Line Reading Support
GreenRead Pro is a measurement support app that uses the LiDAR scanner and camera on iPhone/iPad to measure golf green slopes and help with putting line reading.
Simply align the on-screen markers to the actual ball and pin (flag), then level the device posture. Distance, elevation difference, break amount/direction, downhill direction, and estimated rolling line are overlaid directly on the camera view.
No account setup is needed, and all measurement processing is completed on-device. You can use it even on courses with poor network coverage.
Estimates slope from the 3D green surface captured by LiDAR and displays downhill direction arrows.
Use the magnifier circle for precise alignment with the real ball and pin. Auto mode switching is supported.
Shows 3D straight-line distance from Ball to Pin in m / cm / yd, plus uphill (+) and downhill (-) elevation.
Calculates break amount and direction (H = left / S = right), adjusted by selected green speed.
Displays the predicted putting path as a blue curve and target aim direction as a red dashed line.
X/Y meters guide leveling. When needles are near 0°, Auto Hold confirms and freezes the measurement.
Visualizes elevation changes from Ball to Pin as a profile, so terrain trends are easy to understand.
Export and restore your customized settings as JSON files for device migration or reinstall scenarios.
Hold the device so both ball and pin are visible, then align the magnifier cross with the real ball.
Align the magnifier cross with the pin (flag) in the same way to switch to measurement display.
When meter needles are near 0°, Auto Hold freezes the screen so you can check lines and values.
* Keep the device level and place Ball/Pin near the screen center for more stable measurements.
If you choose "OK" at first launch, you can try all features free for a total of up to 1 hour. After trial time is consumed, the app automatically switches to limited-feature mode.
The full version is a one-time, non-consumable in-app purchase. After purchase, you can:
Purchase is permanently linked to your Apple ID, so it can be restored after device changes or reinstalls using "Restore Purchase". Prices are shown on the App Store purchase screen.
Measurement data and settings are stored only on your device. Data captured by camera/LiDAR is used only for on-device measurement processing and is not sent to external servers. No account registration is required.