Terms of Service — Tennis Elbow Oracle

Last updated: 2026-05-07 · App: Tennis Elbow Oracle

In a nutshell

Tennis Elbow Oracle is a self-management mobile app for recreational tennis players recovering from tennis elbow. It tracks your morning stiffness, guides daily rehab exercises, and adapts a “5-Set” progression plan based on what you log. The app is provided “as is”, with no medical warranty. By installing or using the app you accept these Terms.

1. Who provides this app

The app is built and published by an independent developer (“the publisher”). The publisher is not affiliated with, endorsed by, or sponsored by Google LLC, Apple Inc., or any clinical body. “Google Play”, “Firebase”, and “Google Cloud” are trademarks of Google LLC.

2. What the app does

Tennis Elbow Oracle is a React Native client (Expo) that runs on your phone. It:

  • Lets you log morning stiffness, completed exercises, and per-exercise pain.
  • Renders a daily 3-exercise plan (stretch, strengthening, drill) calibrated from yesterday’s stiffness using a traffic-light decision (go / hold / rest).
  • Tracks recovery as a 5-Set match progression and surfaces in-game tennis points.
  • Backs up your logs to the publisher’s backend (Firebase Authentication, Cloud Firestore, Crashlytics, Performance Monitoring) so you can switch installs.
  • Manages optional subscriptions through Google Play Billing and RevenueCat.

The full data inventory, processors, and retention policies live in the Privacy Policy.

3. What the app does NOT do

  • It is not a medical device. It does not diagnose, treat, cure, or prevent any condition.
  • It does not run ads and does not request the Advertising ID.
  • It does not access your camera, microphone, contacts, calendar, photos, files, messages, or location.
  • It does not sell your data, share it with advertisers, or use it to train third-party AI models.
  • It does not provide a clinician relationship. The optional “clinician contact” field is just a phone-number shortcut you store on your own device.

4. Your responsibilities

By using the app you agree that:

  • You are at least 18 years old, or using the app under the supervision of a parent or guardian who has accepted these Terms on your behalf.
  • You will not rely on the app as a substitute for professional medical advice. If you experience sharp, sustained, or worsening pain, you will consult a qualified clinician.
  • You will keep your device reasonably secure (lock screen, OS updates) since your sensitive logs sit in your account.
  • You will comply with the Google Play Terms of Service, the Apple Media Services Terms, and any applicable local law when you use the app.

5. Acceptable use

You agree not to:

  • Reverse-engineer, decompile, or disassemble the app except to the extent expressly permitted by applicable law.
  • Use the app to interfere with, overload, or probe the publisher’s backend or Google’s infrastructure.
  • Resell, sublicense, or redistribute the APK / IPA, or wrap the app inside another product, without written permission.
  • Submit content (e.g. clinician notes, racquet specs) that infringes third-party rights or is unlawful.
  • Use the app to violate Google Play, RevenueCat, or Firebase / Google Cloud API policies.

The publisher may suspend or revoke access for any account that materially breaches these rules.

6. Intellectual property

The app’s source code, exercise content, illustrations, copy, brand, and the “Tennis Elbow Oracle” name belong to the publisher and are protected by copyright and trademark law. These Terms grant you a limited, personal, non-exclusive, non-transferable, revocable licence to install and use the app on devices you own or control, for non-commercial purposes.

Third-party marks (“Google Play”, “Firebase”, “Google Cloud”, “RevenueCat”, “Apple”) belong to their respective owners.

7. Subscriptions and billing

Optional in-app subscriptions are sold through Google Play Billing (Android) or the Apple App Store (iOS) and routed through RevenueCat for entitlement state. Billing, refunds, taxes, and payment-instrument data are handled entirely by Google or Apple — the publisher never sees your card details.

  • Subscriptions auto-renew at the price disclosed at purchase until you cancel from the platform’s subscriptions screen.
  • Refund eligibility is governed by Google’s and Apple’s refund policies, not by the publisher.
  • Free-tier users have no payment obligation.

8. Third-party services

The app relies on third-party services to function. Your interactions with those services are governed by their own terms:

The publisher is not responsible for outages, pricing changes, or policy changes on these third-party services.

9. Disclaimer of warranty

The app is provided “AS IS” and “AS AVAILABLE”, without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, accuracy, completeness, availability, or non-infringement. Recovery progress, stiffness scores, traffic-light decisions, and dose recommendations are derived from self-reported inputs and from general physiotherapy literature; they may be incomplete, delayed, or wrong for your specific situation. The publisher does not warrant that the app is free of defects, that it will run uninterrupted, or that it will produce any specific clinical outcome.

10. Limitation of liability

To the maximum extent permitted by law, the publisher is not liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, including loss of profits, loss of data, loss of training time, sporting performance loss, or worsening of any musculoskeletal condition, arising out of or related to your use of the app.

The publisher’s total cumulative liability for all claims related to the app is capped at the total amount you paid the publisher for the app in the 12 months preceding the event giving rise to the claim. For free-tier users this cap is zero.

Some jurisdictions do not allow the exclusion or limitation of certain damages; in those jurisdictions the publisher’s liability is limited to the smallest amount permitted by law.

11. Changes to these Terms

The publisher may update these Terms when the app, its features, its processors, or applicable law change. The “Last updated” date at the top reflects the most recent change. Continued use of the app after the new version is published constitutes acceptance. Material changes will be surfaced in-app on first launch after the update.

12. Governing law

These Terms are governed by the laws of France, without regard to its conflict-of-laws rules. Disputes arising out of or related to these Terms or the app are subject to the exclusive jurisdiction of the competent courts of France, except where mandatory consumer-protection law in your country of residence grants you the right to bring an action before your local courts.

13. How to stop using the app

You can stop using the app at any time by:

  • Uninstalling it from your device.
  • Deleting your data from inside the app (Settings → Privacy → Delete my data).
  • Cancelling any active subscription from your platform’s subscriptions screen.
  • Revoking any granted OAuth access at https://myaccount.google.com/permissions (Android, where applicable).

Termination does not relieve you of obligations accrued before termination, and Sections 6 (Intellectual property), 9 (Disclaimer), 10 (Limitation of liability), and 12 (Governing law) survive termination.