Support

Getting the Best Pitch Tracking

Throwmium uses your iPhone's camera and machine-learning ball detection to track the baseball or softball during a pitch.

For the best results:

Position your iPhone

Place your iPhone behind the backstop or in another safe location with a clear view of the pitcher and the pitch.

Keep the camera steady and avoid moving or zooming while tracking.

Use good lighting

Good lighting makes it easier for Throwmium to identify the ball.

Whenever possible, avoid:

  • Very dark conditions

  • Strong backlighting behind the pitcher

  • Heavy shadows across the pitching area

  • Situations where the baseball blends into the background

Keep the ball visible

Throwmium works best when the baseball remains visible during the pitch.

Pitchers, coaches, or other objects that block the ball can affect tracking.

Camera distance

Throwmium is designed to work from typical behind-the-backstop distances.

For the best results, experiment with your camera position and make sure the entire pitching area is visible.

Why Didn't Throwmium Track My Pitch?

Throwmium's ball tracking can be affected by environmental and camera conditions.

If a pitch isn't tracked correctly, try:

1. Check your lighting
Make sure the ball is clearly visible.

2. Check your camera position
Make sure the pitcher and pitch path are fully visible.

3. Keep the iPhone steady
A stable camera gives Throwmium a better view of the pitch.

4. Make sure the camera lens is clean
A dirty lens can reduce image quality.

5. Try again
Occasionally a pitch may not be detected correctly. Throwmium's tracking is designed to improve with favorable camera and lighting conditions, but no computer-vision system will detect every pitch perfectly.

My MPH Looks Wrong

Throwmium provides an estimated pitch speed using camera-based tracking.

Results can vary depending on:

  • Camera position

  • Distance

  • Lighting

  • Ball visibility

  • Motion blur

  • Camera hardware

  • Frame rate

  • Pitch trajectory

  • Tracking quality

For this reason, Throwmium should be used as a training and performance tool, not as a certified radar measurement device.

If you're comparing Throwmium with a radar device, make sure both devices are positioned appropriately and are measuring the same pitch.

Slow-Motion Capture

Throwmium can capture pitches in slow motion when the feature is enabled in Settings.

To enable it:

Settings → Slow-Motion Video Capture → ON

Slow-motion clips can then be reviewed in your saved clips.

Ball Path

The ball-path overlay provides a visual representation of the detected movement of the baseball during the pitch.

To enable or disable it:

Settings → Ball Path Overlay

The path is generated from the ball positions detected by Throwmium and should be considered a visual training aid rather than a precise physical trajectory measurement.

MPH Overlay

You can choose whether the MPH result is included in your saved video.

Go to:

Settings → MPH Overlay

When disabled, the saved video can be viewed without the MPH graphic baked into the video.

Your Pitch Clips

Throwmium allows you to review recorded pitches in the Clips section of the app.

Your saved clips may include:

  • Pitch video

  • MPH

  • Pitch information

  • Ball-path visualization

  • Slow-motion video, when enabled

You can delete clips you no longer want to keep.

Free Clips & Throwmium+

Throwmium includes a limited number of free recorded clips so you can try the app before subscribing.

After the free clip limit is reached, Throwmium+ unlocks additional functionality, including unlimited pitch clips and other premium features.

Subscription details and pricing are displayed within the app before purchase.

Subscription Questions

Throwmium+ subscriptions are managed through Apple's App Store.

For questions about:

  • Billing

  • Renewals

  • Cancellations

  • Payment methods

  • Apple subscription management

please use Apple's subscription management tools associated with your Apple Account.

Deleting the Throwmium app does not necessarily cancel an active subscription.

Still Need Help?

We're happy to help.

When contacting support, please include:

Your iPhone model
iOS version
Throwmium version
What happened
What you expected to happen

If you're having a pitch-tracking problem, it's especially helpful to tell us:

  • Approximate camera distance

  • Baseball or softball

  • Lighting conditions

  • Whether the ball was visible throughout the pitch

  • Whether the green tracking box appeared

  • Whether an MPH was displayed

You can contact us at:

support@throwmium.com

Hit Zone LLC
Owner of Throwmium