Coin and feel
Stalk the line. Trust the eyes. Hope the read holds under pressure. No data, no second opinion.
iPhone LiDAR · putting intelligenceThe green,
The green,
digitized.
BullzEye scans the surface you're standing on, solves the physics, and draws the line the green wants — on the iPhone already in your pocket.
Scan → line<60 sec
Point cloud60 Hz
Hardware to startA recent iPhone
Public betaQ4 2026
The hardest shot in golf
Reading a green is the hardest shot in golf.
Putting is ~40% of every round — and the one shot where everyone, from the Tour to Sunday morning, is still guessing. The most decisive stroke in golf has the worst tools.
Lasers and lines
They help you groove a straight stroke — but say nothing about this green, here, right now.
Five-figure laser maps
Tour-grade green maps cost five figures, are pre-surveyed, and are banned from competition play.
Scan → read
From a raw green to a solved line — in three moves.
BullzEye reads a real putting green with the iPhone's built-in LiDAR, finds the ball and the cup, and returns a physics-solved putting line in under sixty seconds — no pre-mapping, no five-figure hardware, and it refuses to guess when conditions are unreliable.
01
Scan
LiDAR + ARKit capture the green as a dense, world-anchored point cloud at up to 60 Hz.
02
Solve
Frames fuse into one surface grid, and a physics-faithful solver finds the optimal aim and pace — gravity, friction, and green speed.
03
Render
The line draws over the green in AR, and the session saves locally for later review.
Technology & moat
A read you can trust— or an honest “rescan.”
The wedge is reading any real green on hardware you already own. The moat is refusing to guess when it shouldn't.
Can a smartphone, with no specialized sensors, recover enough green geometry and ball-flight physics to produce expert-level putt recommendations that measurably improve a golfer's performance?
- Robust on-device detection — Finding the ball and the cup from the camera feed under variable lighting, grass texture, shadow, and camera pose — with lightweight models built for on-device inference.
- Physics-informed green estimation — Estimating green surface geometry and friction from sparse visual cues, and computing optimal trajectories under explicit uncertainty rather than guessing.
- Personalized stroke modeling — Adapting recommendations to an individual golfer's tempo, face control, and miss patterns as sessions accumulate.
A claim survives only if all three agree.
An on-device proposer, a geometric verifier, and a multi-frame stability tracker. One alone hallucinates or misses; together, they hold.
Pinned to the rulebook.
Anchored to regulation geometry — the 42.67 mm ball, the 108 mm cup — and to published putting physics. Verified against a known physical world.
It says “rescan,” not a wrong line.
When confidence is low, BullzEye returns a categorized refusal and explains why. No confident lies — refusal is a first-class output.
How it comparesBullzEyeEveryone else
Reads any green you stand onYes — live LiDARIndoor-mapped or pre-mapped only
Works on your home practice greenYesNo
Hardware required to startNone — a recent iPhone$14k headset, or a mat
Refuses when the read is unreliableYes — first-classNo
Cost to enterFree (V1)$99–$14,480
Every other consumer green-reader is mat-based or pre-mapped — useless on the green at your local muni. Live real-green reading on hardware you already own is the wedge; the hardware roadmap is the moat.
The platform
One free app. A hardware roadmap behind it.
Everyone starts with the app on a LiDAR iPhone. The modules extend range, reliability, and reach — post-V1.
BullzEye App
iOS · LiDAR · standaloneThe full putting experience on any LiDAR-capable iPhone. Free, and the product everyone starts with.
Core Module
Single-board compute · optionalBattery, session vault, and point-cloud viewer on its own Wi-Fi. A one-time hardware purchase, useful with or without the Depth Module.
Depth Module
External sensor · post-V1Stereo / proprietary depth that extends range, improves outdoor reliability, and opens non-LiDAR phones, including Android.
If it needs a server, it's premium. Otherwise it's free.
Free · app + core modulePremium · subscriptionHardware · one-time
The opportunity
The most decisive stroke in golf — the most under-instrumented.
U.S. golfers
The largest on record. 67M+ worldwide.
LiDAR iPhones
Active Pro-class iPhones worldwide (est.). Our free tier reaches all of them.
Training spend
Annual golfer spend on swing and short-game training products (est.).
Of all strokes
Putting decides the round — and it's the most under-instrumented part of the game.
The company
Docs-first builders, honest by design.
BullzEye Golf Technologies, Inc. — Delaware C-Corp · Utah foreign-qualified. Building toward a Q4 2026 public beta and Q1 2027 App Store launch.
Blu Trujillo
Founder & CEOLeads product, engineering, and company strategy — and the docs-first discipline behind the V1 architecture.
CJ Julian
Co-founderPartners on product, go-to-market, and the on-course experience. Anchors the golf domain knowledge that keeps the read honest.
Advisory bench
AdvisorsA standing bench across computer vision, golf instruction, and venture — supporting validation, technical review, and fundraising.
Optical engineering partner
ConsultingAn external optical engineer under consulting agreement, scoping the stereo and proprietary-depth modules and their calibration.
Investors & partners
Data room under NDA$1.5M seed · SAFE. Carries the company through public beta, App Store 1.0, and the first Core Module batch. Instrument, valuation, and allocation to be confirmed. Targeting NSF SBIR — ~$305K Phase I and ~$1.25M Phase II — federal R&D funding that extends every equity dollar. A full data room — Architecture decision records, full source, risk register, decision log, and the test foundation — open with a signed NDA.
Early access
Get on the line.
Join the waitlist for the Q4 2026TestFlight beta. We'll reach out ahead of launch with your invite.
- A LiDAR-capable iPhone is all you need to start.
- Free for everything that runs on-device — no subscription for V1.
- Early testers shape the read before App Store 1.0 in Q1 2027.