How do I record a kick the analyzer loves?
Film from behind the kicker, holding your phone vertically, with the kicker's whole body in frame from approach through follow-through. Make sure only one person is visible. A holder or teammates in frame can confuse the pose tracker.
Then trim the clip to just the kick: a second or two before the approach starts, through the ball leaving the foot. Short, steady, well-lit clips score most reliably.