Golf swing analysis with a memory
Film a swing and we track your body through it, frame by frame. Then you add the part no camera catches—what you were working on, how it felt, where the ball went. So when the slice comes back in April, you can find the fix that worked last August.
Try it yourself
Scrub it frame by frame, draw on it, and read the context panel beside it. No account, nothing to install.
Loading demo…
Nelly Korda, 7 iron. The pose is tracked automatically; the notes are what a golfer adds.
·Drag the slider to scrub · Click tools above to draw
Your camera roll is full of golf swings with no context. You can't remember which club it was, what you were trying to change, or whether the ball did anything good afterwards.
So every spring you rediscover a feel you already found last year, and every lesson starts from what you happen to remember rather than what happened.
"What was I working on here?"
Every golfer, looking at an old swing video
"Did this feel good or bad?"
Critical context, completely lost
"What drill was my coach having me do?"
Without notes, the lesson fades
Add Context to Your Swing
Every swing you save carries the club, what you were working on, how it felt and what the ball did. That is what makes a library worth having.
Pose detection tracks 33 points on your body through every frame, and finds the six positions worth comparing—address, top, impact and the rest. That is the measurement. What makes it useful a month later is the sentence you wrote next to it.
Any angle, any phone. Pose detection runs in your browser, so the video does not have to go anywhere for this part.
One sentence, the way you would tell a playing partner. The club, the focus and the feel are pulled out of it for you.
Lines, angles and positions drawn straight onto the frame, so a note about your takeaway points at the actual takeaway.
Put two swings side by side at the same position rather than the same second—the only comparison that means anything.
No tripod, no playing partner, no special camera.
Down the line if you can manage it. Slow motion helps more than any other single thing, so use it if your phone has it.
Upload the one that felt most like your normal swing—not the best one. A library of your highlights teaches you nothing.
"Seven iron, working on staying in my posture, felt rushed, pulled it left." That is the whole of it. In six weeks it will be the most valuable thing in the app.
Practice research, plainly written and properly sourced. No drills that only work for the person who invented them.
What a vision model can genuinely read from a phone video—and what it cannot.
ReadWhy your range swing disappears on the course, and what the research actually says.
ReadDiagnose what is actually causing it before you spend a month on the wrong fix.
ReadNo. Prop your phone against your bag or a bench, down the line if you can. Slow motion helps more than any accessory, because it gives the analysis more frames through impact where the club is moving fastest.
Computer vision detects 33 points on your body and tracks them frame by frame, then identifies the six phases of the swing—address, backswing parallel, top, downswing parallel, impact and finish. Treat the frame numbers as close rather than exact, and note that clubhead and ball speed cannot be recovered from a phone video by anyone.
Most tools show you the swing and stop. This one records what you were working on, how it felt and where the ball went alongside it, so months later you can search for the change that worked instead of guessing. The analysis is the measurement; the context is what makes it worth keeping.
Yes. Record on your phone and upload directly from any modern mobile browser. You can review and annotate on either phone or desktop.
The core is free: uploads, pose detection, context capture, drawing tools and your swing library. Premium adds the AI video analysis pass, which costs real money in model inference every time it runs.
Free to start, no card. Film one swing, write one sentence, and see what it's worth in six weeks.
Analyse your first swing