The fine print

Terms of Service

Effective date: October 10, 2026

Effective date: October 10, 2026

These terms are an agreement between you and Andras Bori, the individual developer in California who makes SeamSight (“SeamSight”, “we”, “us”). They cover the SeamSight app for iPhone and Apple Watch, the website seamsight.com, and the services behind them (together, “SeamSight”). By creating an account or using SeamSight, you agree to these terms and to our Privacy Policy. If you don’t agree, please don’t use SeamSight.

1. Who can use SeamSight

  • You must be 13 or older. SeamSight isn’t for children under 13, and no one, including a parent or coach, may create an account for a child under 13.
  • If you’re under 18, your parent or guardian must agree to these terms for you. In some US states the App Store also asks a parent to approve the download.
  • You must be allowed to use SeamSight under the laws that apply to you.

2. Your account

  • Give accurate information when you sign up, and keep your password private. An account is for one person.
  • You’re responsible for what happens in your account. Tell us at [email protected] if you think someone else has used it.
  • You can delete your account at any time with Delete Account in the app’s account settings.

3. Health and safety

SeamSight is not medical advice and not a medical device.

  • Practices, workloads, heart-rate zones, recovery figures, ratings and accuracy scores are general training information. Heart-rate zones are estimates based on your age. Readings from a Watch, strap or Apple Health can be wrong.
  • Tennis and fitness training are physical activities with a real risk of injury. Check with a doctor before starting or changing a training program, especially if you have a health condition, are returning from an injury, or are pregnant.
  • Stop and get help if you feel pain, dizziness, chest pain or shortness of breath. Drink water, rest, and use judgment about heat, court conditions and your own limits.
  • You choose whether, how hard and where to practice, and you take on the risks of doing so. Make sure the court and the people around you are safe.
  • For a player under 18, a parent or guardian is responsible for deciding whether the training is suitable.

4. Coaches, players and parents

  • Coaches are independent. Coaches who use SeamSight, including those listed in Find a Coach, are not SeamSight’s employees or agents. We review Find a Coach listings before they appear, but we don’t check coaches’ qualifications, background or insurance, and we don’t guarantee their coaching. Choose a coach with the same care you would anywhere else.
  • Coaches are responsible for their plans. A coach who plans practices for a player is responsible for making them suitable for that player.
  • Payments between you happen outside SeamSight. If you pay a coach, or a coach charges you, that arrangement is between you and the coach. SeamSight isn’t a party to it and doesn’t handle refunds or disputes about it.
  • Teams. When you accept someone onto your team, they see what the Privacy Policy describes for their role. You can remove someone, or leave a team, at any time.

5. Your content

“Your content” means what you add to SeamSight: practices, workouts and drills you create, notes, ratings, cancel reasons, coach listings, requests and the records of your practices.

  • You own your content. Coaches’ own practices and plans stay private to them and the players they send them to, unless the coach chooses to share them.
  • You give us permission to use it to run SeamSight: to store it, show it to you and to the people you share it with, back it up, and make the app work. This permission ends when you delete the content or your account, except for copies already shared with your team or partner (see the Privacy Policy) and backups that are deleted on their normal schedule.
  • Workouts you submit to the shared library may be shown to and used by all SeamSight users once approved. You can ask us to remove one at any time.
  • Only add content you have the right to share, and nothing that’s unlawful, hateful, harassing, sexual, or that gives out someone else’s private information.

6. Using SeamSight fairly

Please don’t:

  • harass, threaten or impersonate anyone, or contact a minor in an inappropriate way;
  • use another person’s account, or try to get into accounts or data that aren’t yours;
  • copy, scrape, resell or reverse-engineer SeamSight, or use it to build a competing product;
  • interfere with SeamSight’s servers or security, or send malware or spam;
  • use SeamSight for anything illegal.

You can report content or a user from inside the app or at [email protected]. We may remove content and suspend or close accounts that break these terms or put people at risk.

7. SeamSight’s content and name

The app, its design, drill library, text and the SeamSight name and logo belong to SeamSight. We give you a personal, non-transferable right to use the app for your own training and coaching while you follow these terms. Don’t use the SeamSight name or logo in a way that suggests we endorse you.

8. Other services

SeamSight works with services we don’t control, such as Apple Health, Apple Watch, Bluetooth heart-rate straps and SwingVision. Their own terms and privacy policies apply to them. SeamSight isn’t affiliated with SwingVision, and we’re not responsible for those services or the data they provide.

9. Test versions, changes and prices

  • Test versions. Builds from TestFlight are early versions. They may have bugs or lose data, and features may change or go away.
  • Changes to SeamSight. We may add, change or remove features. If we stop offering SeamSight altogether, we’ll try to give you notice and a way to get a copy of your information.
  • Prices. SeamSight is free to use today. If we add paid features, we’ll show the price and terms before you pay. Purchases made through the App Store follow Apple’s terms, including Apple’s refund rules.

10. Ending your use

You can stop using SeamSight and delete your account at any time. We may suspend or close your account if you break these terms, if the law requires it, or to protect other users. Sections 3, 4, 5 (for content already shared), 7 and 11 to 14 continue after your account ends.

11. No warranties

SeamSight is provided “as is” and “as available”. To the extent the law allows, we make no promises that it will be uninterrupted, error-free or accurate, or that it will meet your needs, and we disclaim implied warranties of merchantability, fitness for a particular purpose and non-infringement.

12. Limits on our liability

To the extent the law allows:

  • we’re not liable for indirect, incidental, special or consequential damages, or for lost data, lost profits or injuries that come from your training, a coach’s advice, or your use of the app;
  • our total liability for any claim about SeamSight is limited to the greater of $100 or what you paid us in the 12 months before the claim.

Some places don’t allow these limits, so they may not all apply to you. Nothing in these terms limits liability that can’t be limited by law.

13. If you’re an adult: claims against us

If you’re 18 or older and someone makes a claim against SeamSight because you broke these terms or the law, you agree to cover the reasonable costs of that claim.

14. Disputes

California law governs these terms, without regard to its conflict-of-law rules. Before going to court, please email us at [email protected] so we can try to fix the problem. Any lawsuit goes to the state or federal courts in San Diego County, California, except that either of us may use small claims court where it qualifies.

15. Apple

If you got SeamSight from Apple’s App Store:

  • these terms are between you and SeamSight, not Apple, and SeamSight, not Apple, is responsible for the app and its content;
  • Apple has no obligation to provide maintenance or support for the app;
  • if the app fails to meet a warranty that applies, you may tell Apple, and Apple will refund the purchase price, if any; to the extent the law allows, Apple has no other warranty obligation;
  • SeamSight, not Apple, is responsible for handling any claims about the app, including product liability claims, claims that it fails to meet a legal or regulatory requirement, and consumer protection or privacy claims;
  • if someone claims the app infringes their intellectual property, SeamSight, not Apple, is responsible for investigating, defending and settling that claim;
  • you confirm you’re not in a country under a US government embargo and not on a US government list of prohibited or restricted parties;
  • Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.

16. Changes to these terms

If we change these terms, we’ll update the date above. For important changes, we’ll tell you in the app before they take effect. If you keep using SeamSight after that, the new terms apply.

17. Contact

Andras Bori (SeamSight), [email protected].