HeadWell — Terms of Service

Effective date: May 17, 2026
Last updated: May 17, 2026

These Terms of Service ("Terms") govern your use of the HeadWell iOS app, related services, and any website operated by HeadWell ("HeadWell", "we", "us", or "our"). By creating an account or using the app, you agree to these Terms. If you do not agree, do not use the app.

This document is not legal advice and is a v1 publication. It will be reviewed by counsel and may be updated.

1. The Service

HeadWell is a consumer wellness app for individuals with recurring headache patterns (chronic or episodic migraine, tension-type, cluster, vestibular, sinus, or other recurrent headache disorders). The Service allows you to:

Log headache attacks and prodrome events with clinical-grade detail.
Track menstrual cycles, life events, and lifestyle factors.
Receive a daily personalized risk forecast based on barometric pressure, sleep, HRV, cycle phase, and your own history.
Complete validated clinical assessments (MIDAS, HIT-6, ACE-10).
Use guided breathing, stretching, and craniofacial massage protocols.
Generate doctor-ready PDF summary reports.

Wellness, not medicine

HeadWell is a consumer wellness product. It is not a medical device. It does not diagnose, treat, cure, or prevent any disease, and it is not a substitute for professional medical advice, diagnosis, or treatment from a qualified healthcare provider. Always consult a licensed clinician for any health concern. If you are experiencing a sudden, severe, or entirely new type of headache, seek emergency medical attention.

2. Eligibility and account

2.1 Age

You must be at least 18 years old to create an account and use HeadWell. By creating an account, you represent that you are 18 or older.

2.2 Account creation

You may create an account using:

A valid email address and password
Sign in with Apple
Sign in with Google

You agree to provide accurate information, keep your password secure, and notify us promptly of any unauthorized access. You are responsible for all activity on your account.

2.3 One account per person

Each individual may maintain one account. Sharing accounts between people creates inaccurate predictions and may result in account termination.

3. Acceptable use

You agree NOT to:

Use the Service for any unlawful purpose or in violation of any applicable law.
Attempt to reverse-engineer, decompile, or disassemble the app, except as permitted by applicable law.
Interfere with or disrupt the Service or its infrastructure (denial of service, scraping, etc.).
Use the Service to harass, harm, or impersonate any person.
Access another user's account or data without authorization.
Resell, redistribute, or commercially exploit the Service.
Use the Service to make medical decisions for any person other than yourself.

We reserve the right to suspend or terminate accounts that violate these rules.

4. Your data and content

4.1 Ownership

You retain all rights to the personal health data you enter into HeadWell — your headache logs, surveys, assessments, and notes. We do not claim ownership of your data.

4.2 License to operate the Service

You grant us a limited, non-exclusive, royalty-free license to store, process, and display your data solely to provide the Service to you. This license terminates when you delete your account.

4.3 Export and deletion

You can export your full data anytime via Profile → Data Export (CSV and JSON formats) and delete your account via Profile → Account → Delete my account. Deletion is irreversible and removes all your data from our backend within 30 days.

4.4 De-identified aggregate data

In the future, we may use fully de-identified, aggregated data (e.g., "X% of users with sleep deficit log a headache the following day") for research, app improvement, or summary publication. De-identification follows industry-standard practice (no individual identifiers, sufficient cohort size). We will update these Terms before commencing any such use. You may delete your account at any time to opt out.

5. HeadWell intellectual property

The HeadWell app, its source code, design, content, name, logo, and trademarks are owned by HeadWell. Except for the limited license granted to use the app per these Terms, no other rights are granted. You may not copy, modify, distribute, or create derivative works of HeadWell content without our written permission.

6. Third-party services

HeadWell integrates with third-party services including Apple HealthKit, Apple WeatherKit, Sign in with Apple, Google Identity (Sign in with Google), MongoDB Atlas, and Railway. Your use of those services is subject to their respective terms and privacy policies. We are not responsible for the content, practices, or policies of third-party services.

7. Subscription and pricing

HeadWell is free at version 1.0. We may introduce optional paid features in the future. Any paid features will be:

Clearly disclosed before purchase.
Subject to Apple's standard in-app purchase terms (you can manage subscriptions in Apple ID Settings).
Outlined in an updated version of these Terms.

We will not retroactively gate features you previously had access to without notice.

8. Disclaimers and limitation of liability

8.1 Service provided "AS IS"

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR MEDICALLY ACCURATE. The risk forecasts, pattern detection, and insights are patterns derived from your own logged data and publicly available weather data — they are not medical predictions and have not been clinically validated as diagnostic or treatment tools.

8.2 Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL HEADWELL, ITS OFFICERS, DIRECTORS, EMPLOYEES, OR AGENTS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING WITHOUT LIMITATION LOSS OF PROFITS, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES, RESULTING FROM (a) YOUR USE OR INABILITY TO USE THE SERVICE; (b) ANY MEDICAL OR HEALTH DECISIONS MADE BASED ON THE SERVICE; (c) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR DATA; OR (d) ANY OTHER MATTER RELATING TO THE SERVICE.

TO THE EXTENT THE LAW PROHIBITS A COMPLETE WAIVER, OUR AGGREGATE LIABILITY SHALL NOT EXCEED USD $100 OR THE AMOUNT YOU PAID FOR THE SERVICE IN THE PRECEDING 12 MONTHS, WHICHEVER IS GREATER.

8.3 Health emergencies

HeadWell is not designed to detect medical emergencies and will not call emergency services on your behalf. In a medical emergency, call your local emergency number (911 in the United States) immediately.

9. Indemnification

You agree to defend, indemnify, and hold harmless HeadWell from any claim, demand, or damages (including reasonable attorneys' fees) arising out of (a) your use of the Service in violation of these Terms or applicable law, (b) your violation of any third-party right, or (c) any medical decision you or another person make based on information from the Service.

10. Termination

10.1 By you

You may stop using the Service and delete your account at any time via Profile → Account → Delete my account.

10.2 By us

We may suspend or terminate your account if you violate these Terms, if your account is inactive for an extended period, or if required by law. We will provide notice where reasonable and practical.

10.3 Effect of termination

Sections that by their nature should survive termination will survive — including ownership of intellectual property, disclaimers, limitation of liability, indemnification, and governing law.

11. Modifications to the Service or Terms

We may modify the Service or these Terms at any time. Material changes to these Terms will be posted on this page with an updated Effective date and surfaced in-app via a one-time banner asking you to re-acknowledge. Continued use of the Service after the effective date constitutes acceptance.

12. Governing law and dispute resolution

These Terms are governed by the laws of the State of California, United States, without regard to its conflict-of-laws principles. Any dispute arising out of or relating to these Terms or the Service shall be resolved in the state or federal courts located in San Francisco County, California, and you consent to personal jurisdiction there.

If you are located in the European Union, you may also have the right to bring proceedings in the courts of your country of residence as required by mandatory consumer-protection law.

13. Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions will remain in full effect.

14. Entire agreement

These Terms, together with the Privacy Policy, constitute the entire agreement between you and HeadWell regarding the Service.

15. Contact

Questions about these Terms? Email us:

Email: headeasesupport@gmail.com