Terms of Service

RTK Health — A product of RealTime Kinetics, LLC
Effective Date: April 2026 · Last Updated: May 30, 2026

1. Acceptance of Terms

By signing into RTK Health ("the Service") — whether with a cryptocurrency wallet, Google account, Apple account, or email magic link — you agree to be bound by these Terms of Service. If you do not agree, do not use the Service.

2. Description of Service

RTK Health is a health diary and symptom tracking tool that allows you to log daily health metrics, upload health data files, connect fitness trackers, and receive AI-powered analysis of your health data patterns. RTK Health is a product of RealTime Kinetics, LLC.

3. Not Medical Advice

RTK Health is not a medical device, diagnostic tool, or substitute for professional medical advice, diagnosis, or treatment. AI-generated analyses are for informational purposes only and are intended to help you have more informed conversations with your healthcare provider.

4. Account and Identity

Your account is identified solely by a cryptographic hash. We do not collect your name, phone number, or physical address. If you sign in with Google, Apple, or email, your email address is stored separately from your health data in an optional profile field that you can edit or delete at any time. The hash that identifies your record is derived once at sign-in and remains stable regardless of whether you change or remove your email. Email is never linked to your internal identity in any external system, never sold, and never shared with advertisers.

5. Service Availability

The Service is provided "as is" and may be subject to usage limits, service interruptions, changes to features, or discontinuation with reasonable notice.

6. Data Use, Research, and Derivative Works

Your raw health data belongs to you. We do not use your health data for research, license it, or sell it unless you turn on the corresponding opt-in below. Creating an account or using the Service does not, by itself, grant us any license to use your data for research, licensing, or sale. The free Service works the same whether or not you opt in, and we will never condition access to any feature on your agreement to any data-use option.

What we will never do, regardless of any opt-in:

sell or share data that identifies you — your identity hash, email, or any identifier that could reasonably link a record back to you;
share your data with advertisers, or use it for advertising;
use your data to train our own AI models, or license your data to anyone to train AI models on data attributable to you.

Two opt-in choices (separate, OFF by default, revocable): Inside the app you will find two independent toggles, each off by default. Turning one on is a separate, affirmative opt-in. Each opt-in automatically expires twelve (12) months after you grant it, and you may turn either off at any time.

(a) Research & study matching — you grant RealTime Kinetics, LLC a non-exclusive, royalty-free, worldwide, revocable license to include your de-identified data in research datasets, and you may be matched to (often paid) research studies you appear eligible for. Matching is informational only; you separately decide whether to enroll, under that study's own IRB-approved consent.
(b) Commercial licensing & sale of de-identified, aggregated data — you grant a non-exclusive, royalty-free, worldwide, revocable license to license and sell de-identified, aggregated data (group statistics that describe many users together and never identify any individual) to research and commercial partners for a fee.

Aggregates only today. The data products we license or sell are aggregated group statistics only. We do not currently license individual-level records. Any future individual-level de-identified licensing would require its own separate, plain-language opt-in and is not authorized by the toggles above.

De-identification. Before any data leaves our operational systems for research or licensing, we remove your identity hash, email, and other identifiers and de-identify it using the HIPAA Expert Determination method (a qualified expert determines the risk of re-identifying anyone is very small) — which we use rather than identifier-stripping alone because movement and biometric data can be individually distinctive. Every recipient is contractually prohibited from attempting to re-identify the data or re-disclosing it outside the agreement.

Withdrawal. You may withdraw either opt-in at any time, per choice, without deleting your account or data — simply turn off the toggle in Profile → Privacy & Data. Withdrawal stops new research, licensing, sales, or matching under that scope going forward. It cannot recall de-identified or aggregated data already incorporated into a dataset, study, or licensed product before withdrawal, because that data can no longer be traced back to you.

Optional reimbursement. If you enable opt-in (b), you may elect optional reimbursement — paid in USDC on the Base network to a wallet you designate — if and when your de-identified, aggregated data is included in a paid licensing arrangement. Reimbursement is optional, not guaranteed, not payment for the Service, and not a security; digital-asset values fluctuate and transfers carry risk for which we are not liable; any reimbursement may be taxable and you are solely responsible for any taxes. No reimbursement has been paid to date.

The in-app controls govern. The opt-in toggles and consent screens shown to you in the app are incorporated into these Terms. If anything here is broader than what those in-app controls authorize, the in-app controls control, and no use of your data is authorized beyond what you affirmatively selected.

7. Third-Party Integrations

When you connect third-party services (e.g., Fitbit, Whoop, Oura Ring), we request only read-only access to specific health data categories. Your tracker credentials are stored securely. You can disconnect at any time.

8. AI-Powered Analysis

Health analyses are generated by third-party AI models (Anthropic's Claude). Your health data is transmitted to the AI provider for processing. AI outputs may contain errors or inaccuracies. Do not rely on AI analysis for medical decisions.

9. 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, ACCURACY, OR NON-INFRINGEMENT. REALTIME KINETICS, LLC DOES NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE, OR THAT ANY HEALTH DATA, AI-GENERATED ANALYSIS, OR DE-IDENTIFIED RESEARCH PRODUCT WILL BE ACCURATE OR COMPLETE.

10. Limitation of Liability

To the maximum extent permitted by law, RealTime Kinetics, LLC and its officers, employees, and agents shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from or related to your use of the Service, including but not limited to:

Health decisions made based on AI-generated analyses or dashboard data
Data loss, security incidents, or service interruptions
Reliance on de-identified research products or aggregate derivative data
Actions taken by third parties who license de-identified data products
Inaccurate, incomplete, or delayed threat assessments or health analyses

In no event shall RealTime Kinetics, LLC's total aggregate liability for all claims arising from or related to the Service exceed the greater of (a) the amount you paid to RealTime Kinetics, LLC in the twelve months preceding the claim, or (b) one hundred U.S. dollars ($100).

11. Indemnification

You agree to indemnify, defend, and hold harmless RealTime Kinetics, LLC and its officers, employees, and agents from any claims, losses, damages, liabilities, and expenses (including reasonable attorneys' fees) arising from: (a) your use of the Service; (b) your violation of these Terms; or (c) your violation of any third-party rights.

12. Contact

For questions about these Terms: rtkmotion.io/contact