Terms of Service

RTK Health — A product operated by RealTime Kinetics, LLC
Effective Date: April 2026 · Last Updated: August 4, 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 — and by checking the box confirming "I have read and agree to the Terms of Service and Privacy Policy" at account creation, you agree to be bound by these Terms of Service. These Terms contain provisions that affect your legal rights, including a mandatory individual arbitration agreement and class-action waiver (Section 14), an assignment provision (Section 13), a requirement that you be at least 18 years old (Section 12), and the data-use choices described in Section 6. 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. The Service is operated by RealTime Kinetics, LLC (doing business as "RTK Health").

3. Not Medical Advice

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.
• use, disclose, or include in any research or commercial licensing dataset the following categories of data, which are excluded by design even if you opt in: cycle/fertility, pregnancy/postpartum, menopause, intimacy, mental-health, and free-text content. We maintain technical controls, allowlist/denylist export rules, logging, and audits to prevent the export of these excluded categories.

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 will remove your identity hash, email, and other identifiers and de-identify the dataset using the HIPAA Expert Determination method (a qualified expert determines that 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. We will obtain and retain written documentation of the Expert Determination, including methodology, dataset scope, assumptions, and residual-risk analysis, before any external transfer that relies on de-identification. 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 (including wallet loss, private-key compromise, incorrect-address transfers, network issues, and gas fees) for which we are not liable; any reimbursement may be taxable and you are solely responsible for any taxes. Any reimbursement is a one-way, optional transfer from RealTime Kinetics, LLC to a wallet address you provide; we do not take custody of user funds, pool or intermediate funds between users, or provide wallet services. You must provide applicable tax documentation (e.g., IRS Form W-9 or W-8) before any first payout, and we record the wallet address, transfer date, token amount, and USD value at transfer for tax and reporting purposes. We are not providing investment, financial, banking, or tax advice, and you should seek independent professional advice. 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.

State privacy rights. Residents of Washington: we will not treat a generic commercialization toggle as a "sale" authorization under the Washington My Health My Data Act. Until you complete a Washington-specific authorization that identifies the data sold, the seller and purchaser, the purpose, and the expiration, and that you separately sign, we will not sell or share your consumer health data as defined by Washington law. California residents: you have the right to opt out of the sale or sharing of personal information and to limit the use of sensitive personal information; leaving the research and commercialization toggles off constitutes an exercise of those rights. We retain authorization and revocation records and will make durable copies available to you on request.

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 and other AI features (including the AI coach chat, meal-photo estimation, and document parsing) are generated using a third-party AI provider, Anthropic (the Claude AI service). We request your permission in the app — naming Anthropic and describing what is sent — before any health data is sent for AI processing the first time, and you may withdraw that permission at any time in Profile → Privacy & Data. Data is sent under your pseudonymous identifier, not your name or contact information. Anthropic does not use data submitted through its API to train its models and retains it only for a limited period for abuse monitoring. AI outputs may contain errors or inaccuracies; do not rely on AI analysis for medical decisions.

9. Disclaimer of Warranties

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. Eligibility

You must be at least 18 years old to use the Service. By creating an account and checking the box confirming "I am 18 years of age or older," you attest that you are 18 or older and agree not to permit anyone under 18 to use your account. If we learn that a user is under 18, we may suspend or terminate the account and delete the associated data in accordance with our policies. We log the attestation and maintain an underage-account response process.

13. Assignment

We may assign or transfer these Terms, and our rights and obligations under them, to an affiliate or subsidiary, or in connection with a merger, acquisition, financing, sale of assets, or other corporate reorganization or change of control, without your consent. We will provide notice to users of any such assignment at least thirty (30) days in advance by in-app and email notice, and will confirm that core terms, privacy commitments, and your data-use choices remain unchanged, subject to your statutory rights. You may not assign your rights under these Terms without our prior written consent.

14. Dispute Resolution; Arbitration; Class-Action Waiver

Except as set out below, all disputes arising out of or relating to these Terms or the Service will be resolved by binding individual arbitration administered under the AAA Consumer Arbitration Rules, and not in court, except that either party may bring qualifying claims in small-claims court. You and RealTime Kinetics, LLC waive any right to participate in a class, collective, consolidated, or representative action. You may opt out of this arbitration agreement by sending written notice to the contact address below within thirty (30) days of first agreeing to these Terms; opting out will not affect any other provision. Nothing in this Section prevents either party from seeking injunctive relief in court for intellectual-property or confidentiality breaches. The Disclaimer of Warranties (Section 9) and Limitation of Liability (Section 10) continue to apply in full in any arbitration or other proceeding. This Section is governed by the Federal Arbitration Act, and any portion found unenforceable under applicable law will be severed to the extent required.

15. Premium Subscriptions

RTK Health offers an optional paid subscription ("Premium") that unlocks additional features. The core Service remains free, and no privacy right, health-data access, or data-use choice is ever conditioned on a paid subscription. Prices and billing periods are displayed at purchase and may change prospectively with at least thirty (30) days' notice. Subscriptions are billed through our payment processor (Stripe) on the web, renew automatically until canceled, and can be canceled at any time through the in-app billing portal; cancellation takes effect at the end of the current billing period. Except where required by law, payments are non-refundable and we do not provide prorated refunds for partial periods. We do not store your card details; payment is processed by Stripe under its own terms, and — consistent with our Privacy Policy — the payment identity Stripe holds is never joined to your health data beyond an opaque subscription status.

16. Coaching Services and Marketplace

RTK Health lets you connect with coaches — independent fitness and wellness providers who are not employees or agents of RealTime Kinetics, LLC. Coaches provide general fitness and wellness guidance only, not medical advice, diagnosis, or treatment; we do not supervise, direct, or control a coach's guidance and are not responsible for it. Sharing data with a coach is always your choice: you select what to share when you accept a coaching relationship, you can change or revoke sharing at any time, and certain categories (such as medications, medical history, symptoms, mental-health, and cycle data) are never shared without your separate opt-in.

Some coaches charge a monthly fee that the coach sets. Those fees are billed by RTK Health on the coach's behalf through our payment processor, and RealTime Kinetics, LLC retains a platform fee from each payment. Your coaching payment status never restricts your access to your own data or to any other feature of the app. You may cancel a coaching subscription at any time, effective at the end of the current billing period, and either you or your coach may end the coaching relationship at any time. Payment disputes between you and a coach are primarily between you and the coach, though we may assist in resolving them. Messages you exchange with a coach or prospective coach are private to the two of you and are never sent to any AI service.

17. Termination and Suspension

We may suspend or terminate your access to the Service, in whole or in part, if you violate these Terms, if required by law, or to protect the Service or other users, including suspending or terminating accounts we believe belong to users under 18. You may stop using the Service and delete your account at any time. Provisions that by their nature should survive termination — including any data-use choices already exercised, Disclaimer of Warranties, Limitation of Liability, Indemnification, Dispute Resolution, and these general provisions — survive termination.

18. User Conduct and Acceptable Use

You agree not to: (a) use the Service for any unlawful purpose or in violation of these Terms; (b) attempt to re-identify any de-identified or aggregated data, or identify any individual from it; (c) reverse engineer, decompile, or attempt to derive source code from the Service except to the extent permitted by law; (d) upload malicious code or interfere with the integrity, security, or performance of the Service; (e) access the Service through unauthorized means or scrape data; or (f) misrepresent your identity or age. We may investigate and take appropriate action, including suspension or termination, for any violation.

19. Data Retention, Deletion, and Portability

We retain your data for the life of your account. You may request to access, correct, delete, or obtain a portable copy of your data at any time by contacting us, and we will delete account data within thirty (30) days of a verified request, except where retention is required for legal, audit, or security purposes. Because you are identified only by a cryptographic identifier, you exercise these rights by demonstrating control of that identifier (and your email, if you provided one). Deleting your account or withdrawing an opt-in does not recall de-identified or aggregated data already incorporated into a dataset, study, or licensed product before deletion or withdrawal, because that data can no longer be traced back to you.

20. Third-Party Services

The Service relies on third-party providers (for example, our hosting and content-delivery provider, AI provider, connected trackers, sign-in providers, and email-delivery provider). These services have their own terms and privacy practices, and we are not responsible for their acts or omissions. Availability of the Service may be affected by third-party outages, and we may add, change, or discontinue integrations. To the maximum extent permitted by law, we disclaim liability for interruptions, errors, or data handling arising from third-party services.

21. Security

We maintain reasonable administrative, technical, and physical safeguards designed to protect your data, including access controls, secure transmission, logging, and export audit trails. No system is completely secure, however, and we cannot guarantee absolute security. We will notify you of security incidents affecting your data as required by applicable law.

22. Changes to These Terms

We may update these Terms from time to time. For material changes, we will provide notice by in-app notice and, for users who have provided an email address, by email, at least thirty (30) days before the change takes effect. Your continued use of the Service after the effective date constitutes acceptance of the updated Terms. If you do not agree to a material change, you may stop using the Service and delete your account before the change takes effect.

23. Notices

We may provide legal and privacy notices to you by in-app notice or by email to the address associated with your account, if any. You may send notices to us at rtkmotion.io/contact. Notices we send are effective when sent; notices to us are effective when received.

24. Governing Law and Venue

These Terms are governed by the laws of the State of Florida, without regard to its conflict-of-laws rules, except that the Federal Arbitration Act governs Section 14. Subject to the arbitration agreement in Section 14, any claim not subject to arbitration will be brought exclusively in the state or federal courts located in Florida, and you consent to their jurisdiction and venue. Nothing in this Section limits any non-waivable rights you have under the laws of your state or country of residence.

25. Force Majeure

We are not liable for any failure or delay in performance caused by events beyond our reasonable control, including acts of God, natural disasters, war, terrorism, civil unrest, labor disputes, governmental action, or internet, utility, or third-party service outages.

26. Severability; Entire Agreement; Waiver

If any provision of these Terms is held unenforceable, that provision will be limited or severed to the minimum extent necessary, and the remaining provisions will remain in full force and effect. These Terms, together with the Privacy Policy and the in-app consent screens incorporated by reference, constitute the entire agreement between you and RealTime Kinetics, LLC regarding the Service and supersede any prior agreements on the subject. Our failure to enforce any provision is not a waiver of it.

27. Contact

For questions about these Terms: rtkmotion.io/contact