Terms of Service

1. Acceptance of Terms

By using The Forehand Lab, you confirm that you are at least 13 years old (or the age of digital consent in your jurisdiction), and that you agree to comply with these Terms.

2. Your Account

To use The Forehand Lab, you'll need to register an account. You're responsible for keeping your login credentials secure and for all activity under your account. You can delete your account anytime from within the app.

3. Subscriptions

The Forehand Lab is a subscription service billed through the Apple App Store or Google Play.

• Subscriptions renew automatically until canceled.
• You can cancel anytime through your App Store or Google Play account settings.
• Refunds are handled by Apple or Google under their policies.
• We may change prices with advance notice.

4. Your Videos and Content

You own the videos and content you create in the app. By using the Service, you grant us a license to host, process, and analyze your content to provide the Service — including using it to train and improve our computer vision models, unless you opt out in app settings. Full details are in our Privacy Policy.

You're responsible for your content, including ensuring you have the right to record in your location and that anyone visible in your videos has consented to being recorded.

5. Acceptable Use

You agree not to:

• Use the Service for anything illegal or harmful
• Reverse engineer the app or extract our models
• Use the Service to train competing machine learning models
• Record people without their consent
• Interfere with or disrupt the Service

We may suspend or terminate accounts that violate these Terms.

6. Measurement Accuracy — Important

The Forehand Lab uses computer vision to estimate things like ball height over the net. These measurements are approximations, not precise instruments.

Accuracy depends on camera setup, lighting, calibration, and other factors. Measurements are for personal training feedback only — they are not suitable for line calling, official scoring, wagers, or any decision with real-world consequences. We make no guarantee that measurements are accurate.

7. Physical Activity — Important

Tennis carries injury risk. Consult a doctor before starting any new physical activity program. You are solely responsible for your own safety while using the Service. Our drills and recommendations are for general training purposes only and are not medical advice, coaching, or physical therapy.

8. Intellectual Property

The Forehand Lab — including the app, our machine learning models, the drill curriculum, and all related content — is owned by us or licensed to us. You may not copy, distribute, or create derivative works without our permission.

9. Disclaimers and Limitation of Liability

The Service is provided "as is" and "as available," without warranties of any kind. We don't guarantee uninterrupted service, error-free operation, or specific results (including improvement in your tennis game).

To the maximum extent permitted by law, we are not liable for indirect, incidental, or consequential damages — including injuries, lost data, or lost time — arising from your use of the Service. Our total liability is limited to the greater of (a) the amount you paid us in the past 12 months, or (b) $100 USD.

10. Termination

You may delete your account at any time. We reserve the right to suspend or terminate accounts that violate these Terms.

11. Changes to These Terms

We may update these Terms from time to time. When we make significant changes, we'll notify you through the app or by email. Continued use after changes means you accept the updated Terms.

12. Contact

Questions? Contact us at damon@theforehandlab.com.

Last updated: April 20, 2026