Terms & Conditions

Effective Date: March 28, 2026.

Last Updated: March 28, 2026.

Section 1: Acceptance of Terms

These Terms & Conditions ("Terms," also referred to as "Terms of Service" in our Medical Disclaimer and Privacy Policy) are a legally binding agreement between you ("you" or "your") and QuantumOne, Inc. ("Company," "QuantumOne," "we," "us," or "our"), a Delaware corporation with its principal office at 251 Little Falls Drive, Wilmington, DE 19808.

By creating an account, accessing, or using the QuantumOne website, mobile application (iOS and Android), or any related features, content, and services (collectively, the "Services"), you agree to be bound by these Terms. If you do not agree to these Terms, do not use the Services.

When you create an account through the mobile application, you will be asked to affirmatively accept these Terms. Your continued use of the Services through the website constitutes ongoing acceptance of these Terms.

Your use of the Services is also governed by our Privacy Policy and Medical Disclaimer, both of which are incorporated into these Terms by reference. We also maintain a Consumer Health Data Privacy Policy and a Do Not Sell or Share My Personal Information page, which are incorporated into our Privacy Policy.

Order of precedence. If these Terms conflict with the Medical Disclaimer on topics owned by the Medical Disclaimer (medical disclaimers, assumption of risk, health-related warnings, arbitration, limitation of liability), the Medical Disclaimer controls. If these Terms conflict with the Privacy Policy on topics owned by the Privacy Policy (data collection, use, sharing, retention, privacy rights), the Privacy Policy controls. These Terms control on all other matters.

Section 2: Description of Services

QuantumOne is a consumer health optimization mobile application (iOS and Android) and website. The Services include:

Correlation Engine — cross-source analysis of your health data to identify statistical relationships between behaviors, supplements, biomarkers, environmental factors, and health outcomes.
Advice Engine — personalized recommendations with quantified impact estimates, generated by cross-referencing your correlations against academic literature and statistical patterns.
3D Hologram Dashboard — an interactive visual summary of your health data and correlations.
Inputs — tools for logging and uploading health data, including supplements, nootropics, biohacks, habits, nutrition, measurements, sleep, blood tests, DEXA scans, and genetic data, as well as connecting wearable devices and health platforms.
Insights — trend analysis across your data over time.
Experiments — structured self-experiment tracking to test the impact of specific interventions.

The Services are for general wellness and self-optimization only. QuantumOne is a technology company. We are not a healthcare provider, laboratory, medical facility, or clinical service. We are not a covered entity under HIPAA. The Services do not constitute medical advice, diagnosis, or treatment. For the full medical and health-related disclaimers governing your use of the Services, see our Medical Disclaimer.

The Services, including all advice, correlations, recommendations, and other outputs generated by the correlation engine and advice engine, have not been evaluated by the U.S. Food and Drug Administration (FDA). The Services are not intended to diagnose, treat, cure, or prevent any disease. Any product recommendations, including those presented through affiliate relationships (see Section 14), are for informational purposes only and do not constitute FDA-approved health claims.

Automated analysis and probabilistic outputs. The correlation engine and advice engine use machine learning and automated statistical models to generate correlations, quantified impact estimates, and recommendations. These technologies are inherently probabilistic — they identify statistical patterns and associations, not certainties. As a result, the Services may occasionally produce outputs that are inaccurate, incomplete, misleading, or inconsistent. You acknowledge that no warranties are made with respect to the specific accuracy of any individual output generated by the correlation engine or advice engine. All outputs should be evaluated critically and, where they relate to health decisions, discussed with a qualified healthcare provider before acting on them. For detailed information about algorithmic and correlation limitations, see our Medical Disclaimer (Section 6).

The Services are available in the United States only.

Section 3: Eligibility

You must be at least eighteen (18) years of age to use the Services. By creating an account, you represent and warrant that you are at least 18 years old and that you have the legal capacity to enter into these Terms.

The Services are intended for use by individuals physically located in the United States. If you access the Services from outside the United States, you do so at your own risk and are solely responsible for compliance with your local laws.

Prohibited users. By creating an account, you represent and warrant that you are not using the Services on behalf of an insurance company, employer, or any third party for the purpose of evaluating, underwriting, or making decisions about another person's insurability, employment, or eligibility for benefits. The Services are designed for personal health optimization by individual consumers only. QuantumOne reserves the right to immediately terminate any account that we reasonably believe is being used in violation of this provision.

Section 4: Account Registration & Security

Account creation. To use the Services, you must create an account using a valid email address. You may register using an email address and password, device biometrics or PIN, or by signing in through a third-party authentication provider (Apple or Google). If you use device biometrics (such as Face ID, Touch ID, or fingerprint) or a device PIN to authenticate, this data is processed entirely on your device and is never transmitted to or stored by QuantumOne. Your email address is the only personal identifier we collect. We do not collect or store your full name, physical address, or phone number during registration — even if a third-party authentication provider makes this information available.

One account per person. Each individual may maintain only one account. Creating multiple accounts is a violation of these Terms.

Account security. You are responsible for maintaining the security of your account credentials, including your password, device biometrics, device PIN, and any device used to access the Services. You must notify us immediately at legal@quantumone.app if you become aware of any unauthorized access to or use of your account.

Account accuracy. You agree to provide accurate information when creating your account and to keep your email address current.

Suspension and termination. We reserve the right to suspend or terminate your account in accordance with Section 17 of these Terms.

Section 5: Subscription, Billing & Payment

Pricing. The Services are available on a subscription basis at the following rates:

Monthly: $19 per month
Annual: $190 per year

Payment processors. Payments are processed by Stripe (primary) and Apple In-App Purchases (IAP) for iOS users. We do not receive, process, or store your full credit card number, bank account details, or other financial account information. Your payment information is handled directly by Stripe or Apple in accordance with their respective privacy policies and terms.

Auto-renewal. Your subscription automatically renews at the end of each billing period (monthly or annual) unless you cancel before the renewal date. By subscribing, you authorize us (or the applicable payment processor) to charge your payment method for each renewal period until you cancel.

Renewal reminders. For annual subscriptions, we will send you a reminder email at least fifteen (15) days before your renewal date, stating the renewal amount, renewal date, and how to cancel. For monthly subscriptions, reminders may be sent by us or the applicable payment processor (Stripe or Apple). These reminders are provided in addition to any notifications sent independently by Stripe or Apple.

Cancellation. You may cancel your subscription at any time through your account settings in the app, or by canceling through Apple's subscription management (for iOS subscriptions purchased through Apple In-App Purchases). If the app is distributed through the Samsung Galaxy Store, cancellation is managed through the Samsung Galaxy Store or through your account settings in the app. You may also contact us at legal@quantumone.app for assistance. Upon cancellation, your access to the Services continues through the end of your current billing period. No prorated refunds are issued for partial billing periods. Cancellation is designed to be as easy as signup.

Refunds. Refund requests are evaluated on a case-by-case basis at QuantumOne's sole discretion. We are not obligated to issue refunds, but we may do so in circumstances where we determine it is appropriate. To request a refund, contact us at legal@quantumone.app. For subscriptions purchased through Apple In-App Purchases, QuantumOne cannot process refunds — you must contact Apple directly.

Price changes. We may change our subscription prices at any time. If we increase prices, we will provide at least thirty (30) days' notice via email before the new price takes effect on your next renewal. If you do not agree with the new price, you may cancel your subscription before the new price takes effect.

Failed payments. If a payment fails, we may suspend your access to the Services until the payment issue is resolved. We will make reasonable efforts to notify you of the payment failure via email.

Section 6: Free Trial

Trial terms. New users receive a one (1) month free trial with full, unrestricted access to all features of the Services. A valid payment method is required to start the free trial, but no charge is made during the trial period. You will not be billed until the free trial period ends.

Trial to paid conversion. Before your free trial ends, we will notify you via email that your trial is expiring and that billing will begin. If you do not cancel before the end of the trial period, your subscription will automatically convert to a paid subscription at the rate you selected during signup, and your payment method will be charged.

Auto-renewal acknowledgment. When you sign up for the free trial, we will send you a confirmation email that clearly states: (a) that your subscription will automatically renew and convert to a paid subscription at the end of the trial; (b) the subscription price and billing frequency; (c) how to cancel; and (d) a link to cancel your subscription. This acknowledgment is provided in compliance with applicable auto-renewal disclosure laws.

Data practices during the trial. Data collection, use, sharing, and retention practices are identical during the free trial and during paid subscription periods. There is no difference in how we handle your data based on your subscription status. See our Privacy Policy for details.

One trial per person. The free trial is available once per person. Creating multiple accounts to obtain additional free trials is a violation of these Terms.

Section 7: User Conduct & Acceptable Use

You agree not to:

(a) Reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code, algorithms, or underlying structure of the Services or any component thereof, including the correlation engine and advice engine.

(b) Use any automated means — including bots, scrapers, spiders, or data mining tools — to access, extract data from, or interact with the Services.

(c) Upload, transmit, or introduce any malicious code, viruses, trojan horses, or other harmful files or software to or through the Services.

(d) Attempt to gain unauthorized access to any other user's account, data, or personal information, or to any systems or networks connected to the Services.

(e) Use the Services for any purpose that violates applicable federal, state, or local law.

(f) Misrepresent your identity, impersonate another person, or create an account on behalf of someone else without their authorization.

(g) Upload data belonging to another person without that person's informed consent. This includes health, biometric, and genetic data. You should be aware that uploading genetic data may have implications for biological relatives, as described in our Privacy Policy.

(h) Use any output, correlation, advice, or data from the Services as evidence or in connection with legal, regulatory, or forensic proceedings without QuantumOne's prior written consent, as stated in our Medical Disclaimer.

(i) Resell, sublicense, redistribute, or commercially exploit any part of the Services, their content, or their outputs without QuantumOne's prior written permission.

(j) Circumvent, disable, or otherwise interfere with any security, access control, rate-limiting, or technical protection measures of the Services.

(k) Use the Services to promote, facilitate, or pursue dangerously low levels of caloric intake, disordered eating patterns, or any pattern of use that could reasonably contribute to an eating disorder or other self-destructive relationship with food, nutrition, or body composition. QuantumOne promotes healthy, sustainable approaches to nutrition and does not condone the use of its tools to reinforce harmful dietary behaviors.

Section 8: User Content & Data Ownership

You own your data. All health, biometric, genetic, clinical, supplement, nootropic, biohack, nutrition, habit, measurement, sleep, and self-reported data that you upload, enter, or connect to the Services ("User Data") remains your property. QuantumOne does not claim ownership of your raw User Data.

Limited license to QuantumOne. By uploading, entering, or connecting User Data to the Services, you grant QuantumOne a non-exclusive, worldwide, royalty-free license to process, store, analyze, and use your User Data solely for the purpose of providing and improving the Services as described in our Privacy Policy. This license terminates when you delete your account, except as described below regarding anonymized data.

Anonymized data. Upon account deletion, your email address is permanently deleted and all remaining data is anonymized in accordance with our Privacy Policy (Section 8). Anonymized data that cannot reasonably be used to identify you is not personal information and may be retained indefinitely for aggregate research and product improvement purposes.

Use of aggregated data. QuantumOne may use anonymized, aggregated data derived from User Data for internal research, product improvement, statistical analysis, and general descriptions of our user base (e.g., aggregate health trends, population-level averages, or usage patterns). Aggregated data will never identify you individually. This use is consistent with the data practices described in our Privacy Policy.

No commercial rights in derivative products. You acquire no ownership, royalty, or commercial rights in any products, features, algorithms, research, publications, or intellectual property developed by QuantumOne using anonymized or aggregated data, even if your User Data contributed to the aggregate dataset from which such products or intellectual property were derived.

QuantumOne owns its outputs. The correlations, advice, quantified impact estimates, trend analyses, and all other outputs generated by the correlation engine, advice engine, and other components of the Services ("Service Outputs") are the intellectual property of QuantumOne. You receive a personal, non-exclusive, non-transferable, revocable license to view and use Service Outputs solely for your own personal health optimization purposes. You may not reproduce, distribute, sell, or create derivative works from Service Outputs.

Data deletion. You may request deletion of your account and data at any time through Settings > Privacy in the app or by emailing privacy@quantumone.app. The deletion process is described in our Privacy Policy (Section 8): your email is permanently deleted within thirty (30) days, remaining data is anonymized (email association permanently removed), and backup copies are processed (email deleted, data anonymized) within ninety (90) days.

Output quality depends on input quality. The accuracy, completeness, and usefulness of correlations, advice, and other Service Outputs generated by the correlation engine and advice engine depend directly on the quality, accuracy, and completeness of the User Data you provide, upload, and connect. Incomplete, inaccurate, or inconsistent input data — whether from manual entry, uploaded documents, connected wearable devices, or third-party health platforms — may result in Service Outputs that are unreliable, misleading, or inapplicable to your circumstances. QuantumOne is not liable for Service Outputs that are rendered inaccurate by underlying data quality issues, regardless of the source of the inaccuracy. For additional detail on data accuracy limitations, see our Medical Disclaimer (Section 9).

No sharing with insurance companies or employers. QuantumOne will not knowingly disclose your User Data, Service Outputs, or any identifiable health, genetic, or biometric information to insurance companies, employers, or any third party for the purpose of insurance underwriting, employment decisions, or eligibility determinations. This commitment applies regardless of whether the data is in identifiable or de-identified form. The sole exception is where QuantumOne is compelled to disclose information by valid legal process (such as a court order or subpoena), as described in our Privacy Policy (Section 6).

Section 9: QuantumOne Intellectual Property

All trademarks, logos, service marks, trade names, and branding elements — including "QuantumOne," the 3D hologram dashboard design, and the app's visual design — are the property of QuantumOne, Inc. or its licensors.

The correlation engine, advice engine, algorithms, statistical models, software, user interface, and all other components of the Services are proprietary to QuantumOne and protected by copyright, trade secret, and other intellectual property laws.

Nothing in these Terms grants you any right, title, or interest in QuantumOne's intellectual property beyond the limited, personal, non-exclusive, non-transferable, revocable license to use the Services in accordance with these Terms.

You may not copy, reproduce, modify, distribute, display, create derivative works from, or otherwise exploit any part of the Services or their content without QuantumOne's prior written permission.

Section 10: Third-Party Services & Integrations

The Services integrate with third-party wearable devices, health platforms, and applications (including but not limited to Oura, Apple Watch, Apple Health, Garmin, Fitbit, Whoop, Dexcom, EightSleep, Strava, and MyFitnessPal) via the Open-Wearables integration layer.

The Services also incorporate data from public environmental data sources, including the National Weather Service (NWS), National Solar Radiation Database (NSRDB), AirNow, TROPOMI Sentinel-5, weatherapi.com, and EPA/state water quality portals.

Your choice. You connect third-party services at your own discretion. QuantumOne does not require you to connect any specific third-party service.

Third-party terms apply. Third-party services are governed by their own terms of service and privacy policies. You are responsible for reviewing and complying with those terms. QuantumOne is not a party to your agreements with third-party service providers.

No responsibility for third parties. QuantumOne is not responsible for: (a) the availability, accuracy, completeness, or reliability of data from third-party services or public data sources; (b) any changes to, outages of, or discontinuation of third-party services; (c) the data practices or security measures of third-party services; or (d) any loss or damage resulting from your use of or reliance on third-party services in connection with the Services.

Integration disruptions. If a third-party integration becomes unavailable or produces errors, this may result in gaps in your data or reduced functionality within the Services. QuantumOne is not liable for such gaps or reductions.

Environmental and nutritional data represent regional estimates or third-party sources; actual conditions or values may differ. See Medical Disclaimer (Section 9).

Section 11: Service Availability & Modifications

No uptime guarantee. The Services are provided on an "as is" and "as available" basis, as described in our Medical Disclaimer (Section 16). We do not guarantee that the Services will be uninterrupted, timely, secure, or error-free.

Maintenance. We may perform scheduled or emergency maintenance that temporarily interrupts access to the Services. We will make reasonable efforts to provide advance notice of scheduled maintenance, but emergency maintenance may occur without prior notice.

Modifications. We reserve the right to modify, update, improve, or discontinue any feature of the Services at any time. If we permanently remove a material feature, we will provide reasonable notice. The addition of new features may be subject to supplemental terms.

Updates. We may release updates to the mobile application from time to time. Some updates may be required for continued use of the Services. You are responsible for keeping the app updated to the latest version available through the Apple App Store or Google Play Store.

Section 12: Service Credits for Extended Outages

If the correlation engine — the core analytical feature of the Services — is materially unavailable for more than seven (7) consecutive days due to causes within QuantumOne's reasonable control, you may request a pro-rata billing credit for the period of unavailability.

How to request a credit. Submit your request to legal@quantumone.app within thirty (30) days of the outage ending. Include the dates during which you experienced the outage.

Credit calculation. The credit will be calculated as a proportionate share of your current billing period corresponding to the duration of the outage. The maximum credit for any single outage event shall not exceed one (1) month's subscription fee at your current rate.

Credit application. Credits will be applied to your next billing cycle. Credits are not redeemable for cash and are not transferable.

Exclusions. This service credit provision does not apply to: (a) scheduled maintenance for which reasonable advance notice was provided; (b) outages caused by force majeure events (see Section 22); (c) unavailability of third-party integrations or public data sources; (d) issues resulting from your internet connection, device, or software; (e) outages of features other than the correlation engine; or (f) periods during which you did not have an active paid subscription.

Not a service level agreement. This provision is a goodwill commitment and does not constitute a service level agreement (SLA). It does not create a right to terminate your subscription or receive a refund beyond the credit described above. All other remedies are governed by the limitation of liability provisions in our Medical Disclaimer (Section 16).

Section 13: Beta & Experimental Features

We may, from time to time, offer features, tools, or functionality designated as "beta," "experimental," "preview," "early access," or similar labels ("Beta Features").

Voluntary use. Beta Features are optional. Your participation is entirely voluntary.

As-is basis. Beta Features are provided strictly on an "as is" and "as available" basis with no warranties of any kind, in addition to the disclaimers in our Medical Disclaimer (Section 16). Beta Features may contain bugs, errors, or inaccuracies, and may not perform as expected.

Changes and removal. We may modify, suspend, or permanently remove any Beta Feature at any time, without notice and without liability to you.

Feedback. If you provide feedback, suggestions, or ideas about Beta Features, you grant QuantumOne a perpetual, irrevocable, royalty-free license to use that feedback for any purpose without obligation to you.

Additional risk. By using Beta Features, you acknowledge and accept additional risk beyond the normal use of the Services. You should not rely on Beta Features for health decisions or as a substitute for established features or professional advice.

Section 14: Affiliate Relationships & Sponsored Content

The Services may contain affiliate links, product recommendations, or sponsored content related to products and services such as DNA testing kits, supplements, wearable devices, and other health-related products ("Affiliate Content").

Compensation. QuantumOne may receive compensation, commissions, or other consideration from third parties when you purchase products or services through Affiliate Content within the Services. This compensation may influence which products are featured or recommended, but does not alter the personalized correlations or advice generated by the correlation engine based on your data.

Disclosure. Affiliate relationships will be disclosed at or near the point of recommendation within the Services, in compliance with Federal Trade Commission (FTC) endorsement guidelines.

Not endorsements. The inclusion of Affiliate Content does not constitute an endorsement, warranty, or guarantee by QuantumOne of the quality, safety, efficacy, or suitability of any third-party product or service. Any purchase you make through Affiliate Content is a transaction between you and the third-party seller, governed by that seller's terms and policies. QuantumOne is not responsible for third-party products or services.

Your choice. Engaging with Affiliate Content is entirely optional and is not required to use the Services.

Section 15: Community & Social Features

If and when we introduce social, community, shared experiment, or other interactive features ("Community Features"), those features will be governed by supplemental Community Guidelines that will be incorporated into these Terms and made available prior to your use of Community Features.

Content moderation. QuantumOne reserves the right to moderate, edit, remove, or restrict any content shared through Community Features, and to restrict or revoke access to Community Features, at our sole discretion and without prior notice.

User responsibility. If Community Features are introduced, you will be solely responsible for any content you share through them. You must not share another person's health, biometric, genetic, or personal information through Community Features without that person's explicit consent.

No obligation to launch. This section does not commit QuantumOne to launching Community Features at any time or in any form.

Section 16: Electronic Communications Consent

By creating an account, you consent to receive electronic communications from QuantumOne via email. These communications may include:

Transactional messages: account confirmations, password resets, security alerts, subscription and billing notifications, free trial expiration notices, and service-related updates.
Product updates: occasional communications about new features, improvements, or changes to the Services. You may opt out of non-transactional product update emails at any time by using the unsubscribe link in the email.

You agree that electronic communications satisfy any legal requirement that communications be in writing.

We will not send marketing or promotional emails to third parties on behalf of advertisers, and we will not share your email address for third-party marketing purposes, as described in our Privacy Policy.

Section 17: Termination

Termination by you. You may delete your account at any time through Settings > Privacy in the app or by emailing privacy@quantumone.app. Account deletion takes effect immediately — you will be logged out and will no longer be able to access the Services. Any active subscription will be canceled at the time of deletion. No prorated refunds are issued for unused portions of a billing period. Upon account deletion, your data is processed in accordance with our Privacy Policy (Section 8).

Termination by QuantumOne. We may suspend or terminate your account, in whole or in part, if:

(a) You violate these Terms, the Medical Disclaimer, or the Privacy Policy.

(b) You engage in fraudulent, abusive, or illegal activity in connection with the Services.

(c) Your payment method fails and the issue is not resolved within a reasonable period.

(d) We determine, in our sole discretion and with thirty (30) days' notice, that termination is necessary for any other reason.

For termination under subsections (a), (b), or (c), we may terminate your access immediately without prior notice. For termination under subsection (d), we will provide thirty (30) days' notice via email.

Effect of termination. Upon termination, your right to access and use the Services ceases immediately (or at the end of your billing period for no-fault terminations under subsection (d)). Sections of these Terms that by their nature should survive termination — including Sections 3 (Eligibility), 7 (Acceptable Use), 8 (User Content & Data Ownership), 9 (Intellectual Property), 10 (Third-Party Services & Integrations), 12 (Service Credits), 14 (Affiliate Relationships), 18 (Dispute Resolution), 19 (Limitation of Liability), 20 (Indemnification), 22 (Force Majeure), and 24 (Miscellaneous) — shall survive.

Death or disability. In the event of the death or permanent disability of a user with an active paid subscription, the user's estate or legal representative may contact us at legal@quantumone.app to terminate the subscription. Upon verification, QuantumOne will cancel the subscription immediately and issue a pro-rata refund for any unused portion of a prepaid billing period.

Section 18: Dispute Resolution

Disputes arising under or relating to these Terms are subject to the Dispute Resolution, Arbitration & Class Action Waiver provisions set forth in Section 8 of our Medical Disclaimer, which are incorporated into these Terms by reference in their entirety. This includes binding individual arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules, the waiver of jury trial, the class action waiver, and the thirty (30) day opt-out right.

Do not contact QuantumOne to opt out of the arbitration provision in these Terms separately — the arbitration provision in the Medical Disclaimer governs all disputes arising from the Services, including disputes under these Terms. If you opted out under the Medical Disclaimer within the thirty (30) day window, that opt-out applies here. If you did not, the arbitration provision applies to disputes under these Terms as well.

Governing law. These Terms are governed exclusively by the laws of the State of Delaware, USA, without regard to conflict of laws principles.

Exclusive jurisdiction. For any claims not subject to arbitration, you consent to the exclusive personal jurisdiction and venue of the state and federal courts located in Wilmington, Delaware.

Statute of limitations. Any claim or cause of action arising out of or relating to these Terms or the Services must be filed within one (1) year after such claim or cause of action arose, regardless of any statute or law to the contrary. Any claim not filed within this period is permanently barred.

Section 19: Limitation of Liability

The limitation of liability provisions set forth in Section 16 of our Medical Disclaimer apply to all claims arising under or relating to these Terms and are incorporated by reference in their entirety. This includes the "as is" and "as available" disclaimers, the disclaimer of all warranties (express, implied, and statutory), and the liability cap of the amount you paid for the subscription in the preceding twelve (12) months (or $100 if no payment has been made).

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE SERVICES ARE PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND. QUANTUMONE EXPRESSLY DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING, COURSE OF PERFORMANCE, OR TRADE USAGE. QUANTUMONE DOES NOT WARRANT THAT THE SERVICES WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR THAT ANY CONTENT, DATA, OR OUTPUT WILL BE ACCURATE, RELIABLE, OR COMPLETE. Some states do not allow the exclusion of implied warranties, so some of the above exclusions may not apply to you. In such states, our warranties are limited to the maximum extent permitted by law.

In addition to the limitations in the Medical Disclaimer, QuantumOne shall not be liable for any loss or damage arising from:

(a) Your failure to maintain the security of your account credentials, password, or device.

(b) Any third-party service, integration, wearable device, health platform, or public data source that you choose to connect to or use in conjunction with the Services.

(c) Any decision you make regarding your health, supplements, lifestyle, or medical care, whether or not informed by the Services — as further described in the assumption of risk provisions of our Medical Disclaimer (Section 13).

(d) Unauthorized access to your account resulting from your negligence or failure to follow reasonable security practices.

Section 20: Indemnification

The indemnification provisions set forth in Section 14 of our Medical Disclaimer apply to all claims arising from your use of the Services and are incorporated by reference.

In addition, you agree to indemnify, defend, and hold harmless QuantumOne, its officers, directors, employees, contractors, and affiliates from and against any claims, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising from:

(a) Your breach of these Terms.

(b) Your violation of the acceptable use provisions in Section 7.

(c) Your infringement of any third-party right — including intellectual property, privacy, or publicity rights — through content you upload to or transmit through the Services.

(d) Your uploading of data belonging to another person without their informed consent.

Section 21: Apple App Store & Google Play Terms

The following additional terms apply to the extent the Services are accessed through a mobile application downloaded from the Apple App Store or Google Play Store:

Apple App Store

If you downloaded the app from the Apple App Store, you acknowledge and agree that:

(a) These Terms are between you and QuantumOne only, not with Apple Inc. ("Apple"). QuantumOne, not Apple, is solely responsible for the Services and their content.

(b) Your use of the app is subject to the Usage Rules set forth in Apple's current App Store Terms of Service.

(c) Apple has no obligation to provide any maintenance or support services for the app.

(d) In the event of any failure of the app to conform to any applicable warranty, you may notify Apple and Apple will refund the purchase price (if any) for the app. To the maximum extent permitted by applicable law, Apple has no other warranty obligation with respect to the app, and any other claims, losses, liabilities, damages, costs, or expenses attributable to any failure to conform to any warranty are governed by these Terms and the Medical Disclaimer.

(e) Apple is not responsible for addressing any claims by you or any third party relating to the app or your possession and/or use of the app, including but not limited to: (i) product liability claims; (ii) any claim that the app fails to conform to any applicable legal or regulatory requirement; and (iii) claims arising under consumer protection, privacy, or similar legislation.

(f) In the event of any third-party claim that the app or your possession and use of the app infringes that third party's intellectual property rights, QuantumOne, not Apple, is solely responsible for the investigation, defense, settlement, and discharge of any such claim, to the extent required by these Terms.

(g) Apple and its subsidiaries are third-party beneficiaries of these Terms. Upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.

(h) For subscriptions purchased through Apple In-App Purchases, Apple's terms apply to billing, refunds, and cancellation. QuantumOne cannot process refunds for Apple IAP purchases; you must contact Apple directly.

Google Play Store

If you downloaded the app from the Google Play Store, you acknowledge and agree that:

(a) Your use of the app is subject to Google's then-current Google Play Terms of Service, in addition to these Terms. In the event of any conflict between Google's terms and these Terms regarding the app specifically, Google's terms shall prevail to the extent required.

(b) Google is not responsible for the Services or their content. Google has no obligation to provide any maintenance or support services for the app.

(c) Google is not responsible for addressing any claims by you or any third party relating to the app or your possession and/or use of the app, including but not limited to product liability claims, claims that the app fails to conform to any applicable legal or regulatory requirement, and claims arising under consumer protection or privacy legislation.

(d) Subscriptions for the Android app are managed through Stripe, not through Google Play. To cancel your subscription or request a refund, use your account settings in the app or contact us at legal@quantumone.app.

Samsung Galaxy Store

If you downloaded the app from the Samsung Galaxy Store, your use of the app is subject to Samsung's then-current Galaxy Store Terms and Conditions, in addition to these Terms. In the event of any conflict between Samsung's terms and these Terms regarding the app specifically, Samsung's terms shall prevail to the extent required. For subscriptions purchased through the Samsung Galaxy Store, cancellation is managed through the Samsung Galaxy Store or through your account settings in the app.

Section 22: Force Majeure

Neither party shall be liable for any failure or delay in performing its obligations under these Terms to the extent such failure or delay results from events beyond the affected party's reasonable control, including but not limited to: natural disasters, pandemics, epidemics, acts of government, war, terrorism, civil unrest, labor disputes, internet or telecommunications outages, power failures, cyberattacks, failures or disruptions of third-party services (including cloud infrastructure providers, payment processors, and data sources), and any other events beyond reasonable control.

If a force majeure event continues for more than ninety (90) consecutive days, either party may terminate the affected Services upon written notice. If QuantumOne terminates under this provision, users with prepaid subscription periods will receive a pro-rata refund for the unused portion of their current billing period.

Section 23: Changes to These Terms

We may update these Terms at any time.

Material changes. If we make material changes to these Terms, we will notify you by: (a) sending an email to the address associated with your account, and (b) displaying a prominent notice within the app or on our website. Material changes will take effect no sooner than thirty (30) days after we provide notice, unless the change is required by law or relates to a new feature or service, in which case the change may take effect immediately upon notice.

Examples of material changes include: changes to pricing or billing terms, changes to dispute resolution provisions, changes to data ownership or licensing terms, or changes that substantially alter your rights or obligations.

Continued use = acceptance. Your continued use of the Services after the effective date of a material change constitutes your acceptance of the updated Terms. If you do not agree with a material change, you must stop using the Services and delete your account before the effective date.

Non-material changes. Non-material changes (such as formatting corrections, clarifications that do not alter the meaning of a provision, or updates to contact information) may take effect immediately upon posting. We will update the "Last Updated" date at the top of this document.

Section 24: Miscellaneous

Severability. If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, the remaining provisions shall remain in full force and effect. The invalid provision shall be modified to the minimum extent necessary to make it valid and enforceable while preserving its original intent, or severed if modification is not possible.

Waiver. QuantumOne's failure to enforce any right or provision of these Terms shall not constitute a waiver of that right or provision. A waiver of any term shall only be effective if in writing and signed by an authorized representative of QuantumOne.

Assignment. You may not assign or transfer these Terms or any rights or obligations hereunder without QuantumOne's prior written consent. QuantumOne may assign these Terms, in whole or in part, without restriction, including in connection with a merger, acquisition, corporate reorganization, or sale of all or substantially all of our assets. Any attempted assignment in violation of this section is void.

Headings. Section headings are for convenience only and have no legal effect.

Entire agreement. These Terms, together with the Privacy Policy and the Medical Disclaimer, constitute the entire agreement between you and QuantumOne regarding your use of the Services. These three documents supersede all prior or contemporaneous agreements, communications, and proposals, whether oral or written, between you and QuantumOne regarding the Services.

No third-party beneficiaries. Except as expressly stated in Section 21 (Apple App Store terms), these Terms do not create any third-party beneficiary rights.

Relationship of the parties. Nothing in these Terms creates a partnership, joint venture, employment, or agency relationship between you and QuantumOne.

Copyright infringement claims (DMCA). QuantumOne respects the intellectual property rights of others. If you upload files to the Services (including blood test PDFs, DEXA reports, genetic files, or other documents) that contain copyrighted material belonging to a third party, you are solely responsible for ensuring you have the right to upload that material. If you believe that content available through the Services infringes your copyright, you may submit a notice to our designated agent in accordance with the Digital Millennium Copyright Act (17 U.S.C. § 512). Your notice must include: (a) a description of the copyrighted work you claim has been infringed; (b) a description of the material you claim is infringing and its location within the Services; (c) your contact information; (d) a statement that you have a good faith belief that the use is not authorized by the copyright owner; and (e) a statement, under penalty of perjury, that the information in your notice is accurate and that you are the copyright owner or authorized to act on behalf of the owner. Send DMCA notices to: legal@quantumone.app or by mail to QuantumOne, Inc., Attn: DMCA Agent, 251 Little Falls Drive, Wilmington, DE 19808. It is QuantumOne's policy to terminate the accounts of users who are determined, at our sole discretion, to be repeat infringers of third-party copyrights.

Section 25: Contact Us

If you have questions about these Terms, contact us at:

Legal inquiries: legal@quantumone.app

Privacy inquiries: privacy@quantumone.app

Mailing address: QuantumOne, Inc. 251 Little Falls Drive Wilmington, DE 19808

Section 26: Related Legal Documents

Your use of the Services is governed by the following documents, which together constitute the entire agreement:

Terms & Conditions (this document): https://www.quantumone.app/terms.html
Privacy Policy: https://www.quantumone.app/privacy.html
Medical Disclaimer: https://www.quantumone.app/disclaimer.html
Consumer Health Data Privacy Policy: https://www.quantumone.app/consumer-health-data.html
Do Not Sell or Share My Personal Information: https://www.quantumone.app/do-not-sell-or-share.html

Effective date: March 28, 2026.

Last updated: March 28, 2026.

By continuing to use QuantumOne, you acknowledge that you have read, understood, and agree to these Terms & Conditions.

Please also read our Medical Disclaimer and Privacy Policy.