Terms of Service

Effective September 2, 2026

Use Dalton to understand your own health data. Don't use it to diagnose yourself or anyone else, and don't use it to make a fitness-for-duty, deployment, or employment decision. That decision belongs to a qualified professional and the responsible decision-maker, not to Dalton. Don't try to break it, copy it, or use it for anything it's not built for. Your data is yours; we hold it as a custodian. We provide the Service as-is and aren't liable for decisions made based on it.

The rest of this document is the precise version which governs.

1. Acceptance of terms

By accessing or using Dalton (the website at dalton.health, the platform at app.dalton.health, or the Dalton Sync app, collectively "the Service") you agree to be bound by these Terms of Service. If you do not agree, do not use the Service. These Terms apply to all users, including those using the Service during early access.

2. Eligibility

Dalton is not intended for and is not offered to anyone under 18. We do not knowingly collect data from children.

3. License to use the Service

Subject to your compliance with these Terms, Dalton grants you a limited, non-exclusive, non-transferable, revocable license to access and use the Service, for your own use or on behalf of an organization that has been granted access, subject to any separate agreement between Dalton and that organization.

You may not:

4. Not medical advice, not a medical device

Dalton is a general-wellness and decision-support tool. It surfaces your own health data, the patterns within it, and the published evidence relevant to those patterns. It is intended to inform decisions you and the professionals you trust make. It is not a medical device, and it does not provide medical advice, diagnosis, or treatment.

Dalton does not tell you what to take, what dose to take, or what to do. It surfaces information and cites its source. Decisions about your health, including any change to medication, supplementation, training, or care, remain between you and a qualified healthcare professional. Nothing Dalton shows you is a substitute for professional medical judgment.

If you may have a medical emergency, contact emergency services. Do not rely on Dalton for urgent or emergency medical needs.

5. AI-generated output

Parts of what Dalton shows you are produced by an AI model, including answers to questions you ask about your own record and structured results extracted from documents you upload.

AI-generated output can be incomplete or wrong, including a value read incorrectly from a document you upload. Check anything that matters against the underlying data and the source document it came from, and against a qualified professional. The disclaimers in Section 13 apply to this output as they do to the rest of the Service.

6. No fitness-for-duty or employment determination

Dalton does not make, and must not be used to make, any determination about a person's fitness for duty, deployability, or suitability for employment or assignment.

Where Dalton is used in an operational or occupational setting, it surfaces physiological context and trends to inform the judgment of the individual, their clinician, and their leadership. The decision about duty, deployment, assignment, or any employment matter is made by the responsible decision-maker and remains their sole responsibility. Dalton informs that decision; it does not make it, and it does not replace the professional and command judgment of the people who do.

An organization using Dalton agrees that it will not represent Dalton output as a fitness-for-duty determination and will not substitute Dalton output for the medical and command processes that such determinations require.

7. Your data

You own your health data. Dalton holds it as a custodian. We do not sell it, and we do not use it for any purpose beyond operating the Service for you except under an explicit, separate, revocable consent you grant. How your data is protected and who can access it is set out in the Privacy Policy, which is incorporated here by reference.

You may request an export of your record at any time and delete your account at any time. We will never paywall your own historical data or your ability to export it.

8. Sharing access is on your terms

If you grant another person or organization a view of your data through Dalton, you control its scope and can revoke it at any time. Revocation takes effect as soon as you revoke, though a view already open on someone's screen may remain visible until it refreshes. A grant you make does not transfer ownership of your data and does not permit the recipient to use it beyond the scope you set.

9. Early access

Dalton is currently invite-only. If you are using the Service during early access, you acknowledge that:

10. Pricing and payment

Dalton is currently invite-only and not generally priced. When pricing is introduced, it will be disclosed to you before it applies, along with clear terms for billing, cancellation, and refunds. The commitment in Section 7 applies regardless of pricing.

11. Intellectual property

The Dalton name, logos, product design, source code, and all related materials are the intellectual property of Dalton Systems, Inc. and are protected by copyright, trademark, and other applicable laws. Nothing in these Terms grants you any right to use Dalton's trademarks except as expressly permitted.

12. Open source and third-party components

The Service may incorporate open-source software components. Where applicable, those components are governed by their respective licenses, which take precedence over these Terms with respect to those components.

13. Disclaimer of warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ACCURACY, OR UNINTERRUPTED OPERATION. YOUR USE OF THE SERVICE IS AT YOUR SOLE RISK.

14. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, DALTON SYSTEMS, INC., ITS FOUNDERS, EMPLOYEES, AND CONTRIBUTORS SHALL NOT 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 HEALTH-RELATED, FITNESS-FOR-DUTY, DEPLOYMENT, OR EMPLOYMENT DECISION MADE BASED ON INFORMATION FROM THE SERVICE; OR (C) ANY UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR DATA.

To the maximum extent permitted by law, Dalton's total liability for all claims arising out of or relating to these Terms or the Service will not exceed the greater of the fees you paid to Dalton in the six months before the claim arose, or one hundred US dollars.

Some jurisdictions do not allow the exclusion of certain warranties or limitations of liability; in such cases, the above limitations apply only to the extent permitted by law.

15. Indemnification

You, and any organization on whose behalf you use the Service, agree to indemnify and hold harmless Dalton Systems, Inc. and its team from any claims, damages, or expenses arising out of your misuse of the Service, your violation of these Terms, or your violation of any rights of another party.

16. Termination

You may stop using Dalton at any time by deleting your account. We reserve the right to suspend or terminate your access to the Service if you violate these Terms or engage in conduct that harms other users or the integrity of the Service.

17. Changes to these Terms

We may update these Terms from time to time. Material changes will be reflected in the effective date at the top of this page and, where reasonable, communicated in-app. Continued use after changes constitutes acceptance.

18. Governing law

These Terms are governed by the laws of the State of Delaware and the United States, without regard to conflict-of-law principles. Disputes are resolved as set out in Section 19, and where that section does not apply, in the courts of that jurisdiction unless an alternative forum is required by mandatory consumer-protection law in your jurisdiction.

19. Dispute resolution and arbitration

PLEASE READ THIS SECTION CAREFULLY. IT AFFECTS HOW DISPUTES BETWEEN YOU AND DALTON ARE RESOLVED AND LIMITS YOUR RIGHT TO BRING A CLAIM IN COURT OR AS PART OF A CLASS ACTION.

Any dispute arising out of or relating to these Terms or the Service will be resolved by final and binding arbitration before a single arbitrator, administered in the State of Delaware under the rules of a recognized arbitration provider, rather than in court. Judgment on the award may be entered in any court of competent jurisdiction.

YOU AND DALTON EACH AGREE TO BRING CLAIMS ONLY IN AN INDIVIDUAL CAPACITY. NEITHER MAY BRING A CLAIM AS A PLAINTIFF OR CLASS MEMBER IN ANY CLASS, COLLECTIVE, OR REPRESENTATIVE PROCEEDING, AND THE ARBITRATOR MAY NOT CONSOLIDATE CLAIMS OR PRESIDE OVER ANY REPRESENTATIVE PROCEEDING.

You may opt out of this section. Send notice to feedback@dalton.health within 30 days of first accepting these Terms, stating your name, the email address on your account, and that you are opting out of arbitration. Opting out affects no other part of these Terms and does not affect your access to the Service. If you opt out, disputes are resolved in the courts named in Section 18.

Either party may bring an individual claim in small claims court instead of arbitration, and either party may seek injunctive relief in court to protect intellectual property or to prevent unauthorized access to the Service.

This section does not apply where mandatory law in your jurisdiction prohibits it. Where an organization has a separate written agreement with Dalton, the dispute-resolution terms of that agreement control for that organization and its users.

20. Severability

If any provision of these Terms is held to be unenforceable, that provision will be enforced to the maximum extent permissible and the remaining provisions will remain in full force.

21. Entire agreement

These Terms, together with the Privacy Policy and the Medical Disclaimer, constitute the entire agreement between you and Dalton regarding the Service and supersede any prior agreement or understanding on the subject. Where an organization has a separate written agreement with Dalton, that agreement controls for that organization and its users to the extent of any conflict.

22. Assignment

You may not assign or transfer these Terms, or any rights under them, without Dalton's prior written consent, and any attempt to do so is void. Dalton may assign these Terms in connection with a merger, acquisition, or sale of assets.

23. Contact

Dalton Systems, Inc. Email: feedback@dalton.health