Tracking Lab — Support

All three modes — Pitch Design, Bullpen and Struck Out — are free with no limits. The one-time purchase "Lab Pro" (not a subscription; the price is shown on the purchase screen) expands your saved-pitch slots and unlocks exam history with a growth graph, plus CSV export of your records. If you purchased before, use "Restore Purchases" on the Pro screen.

Adjust velocity, spin rate, spin axis, gyro angle and release parameters with faders, and watch the physics simulation render the resulting trajectory and movement. Save your creations as "My Pitches" and throw them in the Bullpen and Struck Out.

Hold the ball at the bottom right (bottom left for lefties) and release the moment the green ring wraps the ball. Early or late releases and finger slip carry into the flight; after the ball lands you'll see the cause (early/late, slip) and the miss distance.

Throw the same pitch ten times and get an A–E grade for release repeatability. The catcher's target moves every pitch. Finishing an exam records your result; with Lab Pro you can track your progress on a graph.

Points come from accuracy, panels broken and pitch difficulty, with a large bonus for scoring with a pitch you designed yourself. Your best score can be posted to the Game Center global leaderboard (signing in is optional).

Use "Units" at the bottom of the home screen to switch between km/h·cm and mph·in. It only changes the display; saved records are unaffected.

Your pitches, records, exam results and best scores are stored only on your device. Nothing is sent to the developer's server.

Open "EXAM HISTORY" from home and tap the share button at the top left to export exam results or all pitch data. The iOS share sheet lets you choose where to save or send the file.