FORETUNETELLER

Replace your $25,000 swing machine with your iPhone.

Get the tour-level accuracy of a $25,000 launch monitor using the iPhone already in your pocket. No expensive hardware, no calibration mats—just instant, high-fidelity 3D shot tracing and real-time spin, speed, and carry data built to help you practice smarter anywhere.

Get TestFlight Beta Explore the Physics
GSPro / E6 Ready
100% On-Device CPU
Under 200ms Latency
FORETUNE TELLER HYBRID LiDAR-VISION
LiDAR CALIBRATION Ready
ACOUSTIC MIC Standby
ALIGNMENT LOCKED
BALL SPEED
0.0MPH
LAUNCH ANGLE
0.0°DEG
SPIN RATE
0RPM
EST. CARRY
0YARDS
SELECT SIMULATED SWING PROFILE

Tour-Grade Launch Monitor. Zero Extra Hardware.

Combine high-speed vision, active laser calibration, and advanced acoustics to track your game in real-time.

240 FPS Microsecond Shutter

Locks custom exposure times to 1/4000s, freezing ball and club speeds over 160 MPH to eradicate motion blur and isolate sub-pixel tracking lines.

Horizontal LiDAR SLAM

ARKit 8 floor planes calibrate camera lens height and gravity-tilt angles. Maps optical pixels to physical dimensions with sub-millimeter precision.

Acoustic Crest Trigger

AVAudioEngine taps your microphone stream at 44.1 kHz, utilizing high-pass crest factor variance to detect high-frequency ball-striking transients in 1ms.

GSPro Local Broadcast

An active on-device socket server (`SimulatorServer`) broadcasts shot payloads over port 24900, letting you play simulator courses directly in your garage.

How We Beat the Hardware

We compared ForeTune Teller directly against the leading dedicated launch monitors sold at retail. The advantages are clear.

Tracking Feature ForeTune Teller TrackMan 4 Foresight GC3 Rapsodo MLM2PRO Garmin R10
Upfront Price $0 Free / $149/yr $25,495 $3,499 $699 $599
Extra Hardware Required None (iPhone Pro) TrackMan Doppler Unit Photometric Camera Box Tripod Mount Stand Radar Sensor Pod
Spin Measurement True Measured (Dimple Texture Flow) True Measured (Radar) True Measured (Optical) Requires Special RPT Balls Estimated/Calculated
Min. Indoor Net Space 4 - 6 Feet 15 - 20 Feet 4 - 6 Feet 14.5 Feet 14 - 16 Feet
Calibration Process Auto LiDAR SLAM Plane (Instant) Manual / Target lines Auto-leveling Manual Alignment App Manual Alignment Pod
Auto 240FPS Swing Video Included Natively (1080p) Requires Ext. Camera USB No Video Recording Low-Res 720p Only Via Secondary Phone App
Simulator Sync Mode GSPro / E6 Local Server TrackMan Software Only FSX Play / E6 Connect E6 / Awesome Golf E6 / Garmin Golf

Personalized AI Swing Coach. Absolute Privacy.

We combine high-speed 3D body biomechanics with a dual-model LLM engine to deliver professional-grade lessons tailored specifically to your build—without tracking your identity.

Anthropometric Profile Customization

By analyzing your **Age, Sex, Height, and Weight**, the AI assistant builds a personalized biomechanical profile. A senior golfer gets custom rotational swing boundaries, while taller players receive optimized shaft leverage planes.

240 FPS Biomechanical Pose Tracking

Our CoreML tracking engine reads dynamic joint angles, pelvic turn, and shoulder tilt. It measures the precise **X-Factor** (pelvis-shoulder separation) and **S-Factor** (lead shoulder tilt) to spot swing flaws.

Generative Drill Visualization via Higgsfield & Wonder

By integrating Higgsfield's physics-driven swing synthesis and Wonder AI's kinetic character visualization, the app generates custom, photorealistic 3D drill templates showing you exactly how your specific skeletal frame should align at peak rotational speed.

CORE USER PRIVACY CONTROL

You own your swing and your data. ForeTune Teller provides a strict, user-governed privacy toggle directly in the App Settings:

Cloud-Based AI Analytics (Opt-In) Uses Google Gemini Flash to run complex 3D skeletal flow comparisons against pro benchmarks.
100% On-Device Processing Keep all video and biometric data local. Processes poses natively on Apple Silicon with zero data shared.
Anonymous Telemetry Sync (Supabase) Anonymously syncs raw ball speed, carry, and launch numbers to help train our trajectory solver accuracy. Strips all personal identity.
No Identity Tracking Policy: ForeTune Teller strips email addresses, names, and accounts from all telemetry database records. Your personal identity is never stored in Supabase or processed by cloud LLMs.
63,828,578 PIXELS & WAVES SOLVED PER SWING

Calculated, not guessed. ForeTune Teller tracks the actual flight of your ball in three dimensions by scanning over 63 million data points, delivering the precise shape of every hook, slice, draw, and stinger.

62,208,000 Camera Vision Pixels Our high-speed 240 FPS frame scanner automatically locates and tracks the golf ball's round shape to trace its launch speed and angle.
1,474,560 LiDAR Depth Scans Active depth lasers scan your hitting area and solve ground tilt. Set your phone down and play—no alignment mats needed.
88,200 Audio Microsecond Samples We listen for the crisp 'click' of club-on-ball contact to pinpoint the exact microsecond of impact, filtering out other range noise.
10,800 Physics Steps Calculated Recalculates ball speed, launch spin, and carry distance over 1,000 times a second using real atmospheric physics.
LiDAR SETUP LOCK 240 FPS SHUTTER MATCH 1ms ACOUSTIC PEAK MAGNUS LIFT (F_L) DRAG (F_D)
SETUP ALIGNMENT LOCKED (90.0°)
SENSOR LEVEL 0.0° TILT
PHASE 01

LiDAR Ground Setup & Leveling

Before a single club is swung, active LiDAR depth raycasts sweep your hitting area. Utilizing custom Google Stitch fusions, we align rolling camera frames and active spatial depth grids into a single, cohesive horizontal turf coordinate plane, instantly compensating for any tripod tilt or ground slope.

1.4M+ Depth Raycasts
0.05° Alignment Lock
PHASE 02

High-Speed 240 FPS Shutter Capture

As you begin your takeaway, the system arms its high-speed shutter, locking exposure speeds to a razor-thin 1/4000s. This hyper-fast exposure freezes ball and club motions exceeding 160 MPH, purging motion blur and delivering sub-pixel optical flow lines directly to the Apple Silicon Neural Engine.

1/4000s Shutter Speed
240 FPS Optical Grid
PHASE 03

Acoustic Peak Impact Detection

The microsecond of strike compression is isolated acoustically. Using a 44.1 kHz continuous stream, the system's acoustic transient analyzer registers the high-frequency click of impact in under 1ms, instantly gating the video buffer to capture only the critical 0.5s impact window.

< 1.0ms Acoustic Trigger
44.1 kHz Audio Scan Rate
PHASE 04

Real-Time Euler ODE Physics Solver

Post-impact, the ball is tracked across the visual field. We calculate the three-dimensional ordinary differential equations of flight, modeling Magnus lift vectors, air drag, and dimple spin decays at 10ms steps, fully rendering the resulting high-fidelity tracers using structural shaders modeled in Blender.

10ms ODE Step Rate
18 Variables Solved Continuously

The Science of Spin & Accuracy

No canned estimates, no cloud lag. ForeTune Teller solves real fluid dynamics equations directly on your device under 200ms.

Aerodynamic Magnus Lift

Backspin creates pressure differences that pull the ball upward, while sidespin bends it laterally. We solve these vectors in real-time to perfectly trace draws, fades, hooks, and slices:

$$\mathbf{F}_L = \frac{1}{2} C_L \rho A \|\mathbf{v}\| (\hat{\boldsymbol{\omega}} \times \mathbf{v})$$

Dynamic Atmospheric Drag

Air resistance constantly fights the ball in flight. The engine recalculates velocity decay by modeling atmospheric air density, elevation, and dimple friction:

$$\mathbf{F}_D = -\frac{1}{2} C_D \rho A \|\mathbf{v}\| \mathbf{v}$$

Real-Time Spin Decay

Friction causes spin to drop during flight. We apply a dynamic exponential decay model to guarantee your ball lands with the correct roll out on the green:

$$\omega(t) = \omega_0 \cdot e^{-k_s t}$$

Sony dToF LiDAR 3D Calibration

ARKit scans 49,152 active depth points at 30Hz to solve camera height and tilt relative to gravity, projecting 2D screen pixels directly to absolute 3D metric coordinates:

$$\mathbf{P}_{3D} = d \cdot \mathbf{K}^{-1} \left[\begin{matrix} u \\ v \\ 1 \end{matrix}\right]$$

CoreML Optical Dimple Flow

Tracks sub-pixel rotations of 300+ ball dimples at 240 FPS. An on-device texture alignment CNN solves rotational spin vectors on any standard white ball without markings:

$$\boldsymbol{\omega}_{axis} = \text{curl}(\mathbf{V}_{dimple})$$

Tailored for Every Practice

From simple practice feedback to premium garage simulator integrations, select the tier that fits your game.

Free Basic

$0/forever

Perfect for quick driving range sessions. Calibrate your device and view baseline ball flight tracers.

  • Ball Speed (MPH)
  • Launch Angle (Deg)
  • Estimated Carry Distance
  • 3D AR Shot Tracer
  • No Advanced Club Metrics
  • No Simulator Connection
Get Started
RECOMMENDED

Pro Swing Lab

$79/year

Unlock full ball and club telemetry with high-fidelity scientific diagnostics.

  • Everything in Free Basic
  • Spin Rate & Axis Tracking
  • Club Speed & Smash Factor
  • Angle of Attack & Path
  • Telemetry Lab Diagnostics Card
  • Practices history storage
  • No Simulator Connection
Join Testflight Beta

Simulator Link

$179/year

Replace commercial hardware and build your dream indoor golf simulator setup.

  • Everything in Pro Swing Lab
  • Unrestricted socket server
  • Local TCP cast (Port 24900)
  • Full GSPro integration
  • E6 Connect integration
  • Ultra-low latency transmission
Get Sim Bundle

Secure your access early! The official beta is active at foretuneteller.golf. Secure your beta slots today.