What accuracy can you expect from True Carry?
True Carry estimates ball flight from iPhone camera video, so results vary with camera placement, lighting, frame-rate support, calibration, the ball, and the club. It is designed for practice and entertainment, not professional club fitting, tournament measurement, wagering, or any use that depends on certified precision.
Internal validation snapshot
These are user-provided internal engineering results recorded July 17, 2026. They are not an independent certification. “Median error” means half of tested shots performed better and half performed worse.
| Metric | Result | Interpretation |
|---|---|---|
| Ball speed | 3.5% | Median error |
| Vertical launch angle | 2.8° | Median absolute error |
| Club speed | 3.1 mph | Average difference vs. reference devices |
| Carry distance, live pipeline | 9.3 yd | Current median absolute error |
| Carry model with reference inputs | 3.3 yd | Median absolute error |
| Total distance | 8.7 yd | Current median absolute error |
The current carry-distance result does not meet True Carry's internal goal of no more than 2 yards of median error. The difference between the live pipeline and reference-input model indicates that capture and input estimation remain the largest opportunities for improvement.
How to get the most repeatable result
- Use a stable tripod and keep the phone directly above the ball at the guided 41-inch height.
- Center the ball in the on-screen target and wait for the Ready state.
- Use even lighting with clear contrast between the ball and the background.
- Compare sessions only after using the same device, placement, ball, and environment.
See the complete iPhone launch monitor setup guide before judging a session.
What we will publish next
A stronger public benchmark needs the tested iPhone models, app and model versions, reference-device setup, shot count, club mix, missed-shot rate, error distribution, and downloadable raw data. Until that study is published, True Carry will describe its outputs as estimates.