SwimCoach: Stroke Analysis

SwimCoach films a freestyle swim and scores its biomechanics — entirely on your iPhone. Record from the pool deck or import a clip you already have. A neural network reads pose keypoints from every frame, scores three-second windows, and turns them into a 0–100 technique score with a letter grade. You see which faults showed up, exactly when they happened, and which drills address them. WHAT YOU GET • A technique score for every swim, with the trend across sessions • Detected faults — body sag, elbow collapse, knee overbend, kick rate, stroke asymmetry • A skeleton overlay on your own video, so you can see what the model saw • An issue timeline: tap a mark to jump to the moment a fault peaked • Drills matched to the faults you actually have, not a generic list • Stroke count, stroke rate, kick rate and left/right asymmetry • Export the overlaid video, or a report card for sharing TRY IT…