Drop one swing and get a post back — skeleton tracking, your real numbers, speed ramp through impact, end card. Six styles. Pick one, hit export, post it. Nothing is uploaded; the whole thing is built on your phone.
One swing, four to ten seconds, whole body in frame. Leave the sound on — the strike in the audio is how impact gets timed exactly.
Nobody posts a spreadsheet. What gets watched is your swing with the skeleton on it, the slow-mo through the ball, and one number on screen that makes someone stop scrolling. That is what this makes.
Every overlay in here comes from the same measurement the rest of the Lab runs on — the same pose track, the same audio-timed impact. Nothing on screen is decoration pretending to be data.
If a number appears on your reel, it was measured. If it could not be measured, it does not appear. That is the whole difference between this and every other swing app with a glowing overlay.