Setup Instructions
Two quick steps to get reliable RPM readings with Top Spin Tracker Pro.
Step 1 — Mark the Ball
Use bold, high-contrast marks around the ball for clean detection.
Step 2 — Setup
Position the iPhone on a tripod with light on the ball; center the ball in-frame.
Quick tips
- Use the selfie (front-facing) camera and keep the device steady.
- Good lighting = better RPM detection. A ring light helps a lot.
- Tap Start Monitoring, take your reps, then Stop to view the session graph.