Motion study · 240 frames per second · all on-device
See the swing you actually made.
Strobe records your golf swing at up to 240 frames a second, finds the positions that matter, and lets you stand on any single frame — on your iPhone, with nothing sent anywhere.
Range study 01 · wedge, down the line · 239.9 fpsShot on iPhone · analyzed by Strobe
F 0287
Address
F 0416
Takeaway
F 0531
Top
F 0584
Downswing
F 0618
Impact
F 0744
Finish
Your eye refreshes about thirty times a second. A downswing is over in a quarter of that.
Whatever you think you did at impact, you are remembering a feeling, not a frame. Strobe keeps the frames — impact isn’t a guess, it’s F 0618.
Index
01CaptureRecord at the highest frame rate your iPhone offers, or import slow-motion clips you already shot. Every frame is kept and every frame is addressable.240 fps
02TrackingBody pose on every frame, computed on the Neural Engine. The skeleton and joint angles draw over the video as it moves.19 joints
03PhasesThe app finds address, takeaway, top, downswing, impact and finish on its own, and names the frame you are parked on. Anything inferred is labelled as an estimate.9 events
04TracerTap the ball at impact and at the top of its flight; physics fills in the rest, down to an estimated landing. Three broadcast-grade styles.2 taps
05CoachOptional, and off until you add your own Anthropic, OpenAI or Google key. It reads the measurements, not your camera roll — the video never leaves the phone.byok
06SessionsA bucket at the range stays one session, not forty camera-roll rows. Compare two swings in drift-free sync. Export one clip or a whole session.in sync
In the app
Fig. 01 — one frame, the body drawn, the club traced
Fig. 02 — compare, two swings locked at impact
Fig. 03 — the numbers, with the estimates named as estimates
Fig. 04 — the library, a bucket at the range is one session
Nothing leaves your phone.
No account, no subscription, no analytics. The only network call the app can make is the one you configure yourself, under your own AI key — and even that gets measurements and a few stills, never video.
F 0287
F 0416
F 0531
F 0584
F 0618
F 0744
