Set the phone
Position your iPhone 4 to 6 feet directly behind the ball, near ground level (1 to 12 inches high, leaning on a stand or turf), and level it horizontally using the gyroscopic spirit level.
iOS TestFlight beta now recruiting
The launch monitor in your bag.
ForeTune Teller is an iPhone-first golf lab for shot capture, swing video, and practice telemetry. No radar box. No calibration mat. Just guided setup, local processing, and a clearer read on every session.
- Device
- iPhone Pro
- Capture
- 240 FPS video
- Mode
- On-device first
Beta promise: honest field validation, clear device limits, and one-tap TestFlight access while testers help us harden capture reliability.
Free TestFlight access
Recruiting golfers for real range feedback.
No dedicated hardware
Built around iPhone camera, motion, and LiDAR where available.
Simulator path
GSPro / E6 sync is treated as beta validation, not a finished guarantee.
Interactive Telemetry Lab
Simulate impact aerodynamics in real time.
Adjust launch variables, smash factor, and ball curvature below to see how ForeTune Teller models 3D ball flight directly on device.
165 mph
112 mph
11.5°
2,450 rpm
Straight
Est. Carry
292
Yards
Smash Factor
1.47
V_ball / V_club
Peak Apex
94
Feet
Hang Time
6.2s
Seconds
Practice Session Logger
Record range shots & export telemetry.
Keep a real-time shot log during your practice session. Review averages and download CSV telemetry files to track your club yardages.
| Shot # | Ball Speed | Club Speed | Smash Factor | Launch Angle | Est. Carry | Peak Apex |
|---|---|---|---|---|---|---|
| No shots recorded yet. Click "Log Shot to Session" above to start logging range telemetry. | ||||||
Range Setup Guide
3 simple steps to high-frequency capture.
No calibration mats or level markers. ForeTune Teller uses the iPhone's internal gyroscope and LiDAR spatial mapping for effortless setup.
Position 6 feet behind the tee
Place your iPhone 4 to 6 feet directly inline behind your target line. Ground level (1 to 12 inches high) resting against your golf bag, a tripod, or range tray.
- Direct line-of-sight to impact zone
- Clear of grass obstruction in lower lens
- Stable surface without turf vibration
Level with Gyroscopic Horizon
The app features an auto-centering HUD indicator. Align the reticle within green tolerance (+/- 2.0°) so camera perspective distortion is mathematically eliminated.
- Automatic lens tilt correction
- Zero manual measurement required
- Visual audio feedback when aligned
Enable High-Speed 240 FPS Mode
ForeTune Teller requests iOS high frame-rate capture pipelines. Outdoor natural sunlight or bright indoor LED range lighting provides crisp microsecond exposure for impact blur reduction.
- 240 FPS optical frame acquisition
- Sub-millisecond shutter isolation
- Acoustic swing trigger for auto-clipping
Core Pipeline
A calm setup flow before the swing gets complicated.
Most launch monitor frustration starts before impact. ForeTune Teller focuses the early beta on making phone placement, permissions, and capture state obvious.
Capture impact
High-speed video and acoustic timing isolate the launch window, so the session feels fast instead of fiddly.
Review the shot
See practical metrics, swing video, and clear confidence states. Beta builds prioritize transparency over pretending every read is perfect.
Beta proof, not vapor
Measured claims beat louder claims.
ForeTune Teller is being validated in the field before making replacement-level promises. Testers get practical capture feedback, device-limit transparency, and a direct path to shape the iPhone beta.
Validation-first beta
Accuracy targets stay honest until there is enough published field data to stand behind them.
Confidence over mystery
The app should explain what it can see, when a shot is usable, and when a retake is smarter.
Direct TestFlight path
Every primary CTA now opens Apple’s public TestFlight link instead of burying testers behind pricing noise.
Device Matrix
Built for real iPhone constraints.
Select your iPhone model below to inspect supported frame rates, LiDAR mesh capabilities, and capture precision specs.
iPhone 15 Pro / Pro Max
Optimal ExperienceTakes full advantage of spatial LiDAR depth mapping and hardware AVFoundation 240 FPS pipelines for instantaneous ball launch & spin estimation.
Neural Chipset
A17 Pro (Sub-10ms Processing)
Video Pipeline
240 FPS @ 1080p High Dynamic Range
Spatial Depth
LiDAR Mesh Matrix 2.0
Home Simulator Bridge
Connect your range sessions to GSPro & E6.
ForeTune Teller exposes an open local TCP/OpenConnect bridge API for garage bay setups. Stream ball flight telemetry directly into simulator software without external hardware dongles.
OpenConnect API
GSPro Integration
Streams launch angle, ball speed, azimuth, and backspin/sidespin payloads over local Wi-Fi directly into GSPro Connect. Zero cloud latency.
Local TCP Sync
E6 Connect Ready
Configurable UDP/TCP port streaming lets garage simulator builders route telemetry to E6 Connect or custom golf analytics software.
Zero Subscription
Local On-Device First
Processing runs 100% locally on your iPhone chip. Your telemetry data stays private on your local device without requiring paid cloud tiers.
OpenConnect Live JSON Stream Payload
{
"Device": "ForeTune Teller iOS",
"Protocol": "OpenConnect v1.4",
"Status": "Ready for Range Telemetry Input"
}Ready for field testers
Help make the iPhone version brutally reliable.
Open the public TestFlight link, install the beta, and send field feedback from your real practice setup so we can harden capture before broad release.
Open TestFlight beta