Undula: LiDAR Green Reader

Read the green before you putt. Undula uses the LiDAR Scanner on iPhone Pro to scan a putting green and lay a height or slope map right on the ground in AR. Tap the ball and the cup, and Undula shows you the line. WHAT YOU SEE • Distance — in meters or yards, and in putter lengths • Uphill or downhill — the height difference between the ball and the cup • The predicted line — the path the ball rolls when hit to finish 40 cm past the cup • Where to aim — how many cups left or right of the hole • Plays-like distance — how long the putt would be on flat ground • Max break — how far the ball curves away from the straight line READ THE GREEN AT A GLANCE • Height and slope color maps with adjustable sensitivity • Downhill arrows with a glow that flows the way the ball will roll • Putter-length and cup-size grids, aligned to your aim line • A grid that reveals the undulations while you scan • Top view — look down on the whole green, pinch to zoom, tilt it in 3D and place the ball and cup precisely BUILT FOR REAL GREENS • Physics-based putt simulation that accounts for every slope along the line — double breaks, tiers and large undulations included • Adjustable green speed (Stimp 6–14 ft) • Precision calibration: lay your iPhone on the green to measure the true slope with its motion sensors and correct LiDAR tilt • Bags, flagsticks and feet are filtered out automatically, and lines over scan errors are hidden instead of guessed HOW IT WORKS 1. Slowly scan from the ball to the cup. 2. Tap the ball, then the cup. 3. Read the line, the aim and the plays-like distance. GOOD TO KNOW Requires an iPhone Pro with a LiDAR Scanner (iPhone 12 Pro or later). Results depend on scan quality; grass grain and wind aren't modeled. PLAY BY THE RULES Measuring slopes with an electronic device during a competition round breaks Rule 4.3a of the Rules of Golf. Use Undula on practice greens, in practice rounds and in casual rounds. PRIVACY No account, no ads, no tracking. The camera and LiDAR are used only on your device to scan the ground — nothing is recorded or sent. Questions or feedback: xhoto.apps@gmail.com