Capture
Everything runs on your device — frames, body read, and the swing checkpoints never leave the browser until you send the eight stills to the coach.
Record in-app, or upload a clip from your camera roll.
Upload the original file. A WhatsApp / iMessage / AirDrop copy is re-compressed and loses the true frame-rate — tempo and sequence will turn off. Use the camera-roll original or record in-app.