Terms of Service
Effective date: June 10, 2026 · Last updated: July 3, 2026
Important: these Terms contain a binding individual arbitration agreement, a class action waiver, and a jury trial waiver (Section 22), broad medical and emergency disclaimers (Sections 2–4), warranty disclaimers (Section 16), and limitations of liability (Section 17). Please read them carefully. Section 22 explains how to opt out of arbitration within 30 days.
1. Agreement to Terms
These Terms of Service (“Terms”) are a binding agreement between you and Omniscient Labs (“Omniscient Labs”, “we”, “us”, or “our”) governing your use of the Cuff mobile application (the “App”), the cuffapp.com website (the “Site”), and related services (collectively, the “Service”). By downloading, installing, accessing, or using the Service, you accept these Terms and our Privacy Policy. If you do not agree, do not use the Service. If you use the Service on behalf of another person, you represent that you are authorized to bind them to these Terms.
2. Medical disclaimer — not a medical device, not medical advice
Cuff is a logging and organization tool for general wellness. It is not a medical device. It does not and cannot measure blood pressure. It does not diagnose, treat, cure, monitor, manage, mitigate, or prevent any disease or condition, and nothing in the Service is medical advice.
The Service has not been cleared, approved, or certified by the U.S. Food and Drug Administration or any other regulatory body, and it is not intended to be a medical device under the U.S. Federal Food, Drug, and Cosmetic Act, the EU Medical Device Regulation, or any similar law. Blood pressure categories shown in the App reproduce published American Heart Association guideline ranges for reference only; they are general educational information, not an assessment of you. No physician-patient or other professional relationship is created by your use of the Service. Always seek the advice of a qualified clinician with any questions about your blood pressure, medications, or health, and never disregard or delay professional advice because of anything in the Service. The accuracy of any reading depends entirely on your separate blood pressure cuff hardware and your technique — we have no responsibility for either.
3. Emergency disclaimer — do not rely on the Service in an emergency
The Service is not an emergency-response, monitoring, alerting, or diagnostic system. If you believe you may be experiencing a medical emergency — including symptoms such as chest pain, shortness of breath, sudden weakness or numbness, severe headache, or vision changes — call 911 (or your local emergency number) immediately.
The App may display informational guidance when a value you enter falls in a published hypertensive-crisis reference range. That guidance is generated locally from data you typed in, depends entirely on the accuracy and timeliness of your input, may fail to appear due to software error, device settings, or other causes, and is not monitored by any person. Nobody at Omniscient Labs sees your readings or will ever contact you about them. You agree that you will not rely on the Service to detect, warn of, or respond to any health condition or emergency.
4. Reminders and notifications disclaimer
Reading and medication reminders are a convenience feature. Mobile operating systems may delay, batch, or suppress notifications (battery optimization, focus modes, permission changes, reinstalls, OS updates), and notifications may fail for reasons outside our control. The medication features are a journal, not a dosing, scheduling, or interaction-checking system. You agree not to rely on the Service for the timing of any medication or treatment; follow your clinician’s and pharmacist’s instructions.
5. Eligibility
The Service is intended for adults. You must be at least 18 years old to purchase a subscription. You must be at least 13 years old (or the higher minimum age of digital consent in your jurisdiction) to use the Service at all, and if you are under 18 you may use it only with the consent and supervision of a parent or legal guardian who agrees to these Terms on your behalf. The Service is not directed to children.
6. License
Subject to these Terms, we grant you a personal, limited, non-exclusive, non-transferable, non-sublicensable, revocable license to install and use the App on devices you own or control, for your personal, non-commercial use, in accordance with the usage rules of the app store from which you obtained it. All rights not expressly granted are reserved.
7. Your data, your device — backup responsibility
The App is local-first: everything you enter is stored only on your device, and we keep no copy. You are solely responsible for safeguarding your device and for exporting or backing up any data you care about (for example by generating a PDF report). Deleting the App, using “Delete all my data”, device loss, device failure, or OS behavior (e.g., Android excluding App data from cloud backups) will permanently destroy your data, and we cannot recover it under any circumstances. To the maximum extent permitted by law, we have no liability for any loss of or inability to recover data.
8. Accuracy of information and your responsibilities
The Service computes averages, trends, insights, and reports exclusively from data you enter or import. You are responsible for the accuracy, completeness, and units of that data; for the maintenance, calibration, and proper use of your blood pressure cuff and any connected hardware; and for verifying any value before sharing it with a clinician or acting on it. Outputs derived from inaccurate inputs will themselves be inaccurate, and we have no obligation or ability to detect this.
9. Subscriptions, billing, and trials (Cuff Pro)
Certain features (such as the PDF doctor report, insights, medication tracking, health sync, and file import) require a paid “Cuff Pro” subscription. Subscriptions are sold and billed exclusively by Apple (App Store) or Google (Google Play) under their terms, at the price disclosed at checkout before you confirm. Subscriptions renew automatically at the disclosed price and interval until you cancel. You can cancel at any time in your App Store or Google Play subscription settings; cancellation takes effect at the end of the current billing period, and to avoid renewal you must cancel at least 24 hours before the period ends. There are no hidden or mandatory additional fees beyond the disclosed subscription price. If a free trial is offered, its length and terms are disclosed at checkout; unless you cancel before the trial ends, the subscription begins billing automatically. Refunds are handled solely by Apple or Google under their policies; except where required by law, we do not issue refunds directly and amounts paid are non-refundable, including for partial periods or unused features. Prices and included features may change prospectively; changes apply at your next renewal after notice through the store or the App.
10. Acceptable use
You agree not to, and not to allow any third party to:
- use the Service in any clinical, diagnostic, monitoring, emergency, or other safety-critical setting, or as a system of record for patient care;
- copy, modify, distribute, sell, rent, lease, sublicense, or create derivative works of the Service;
- reverse engineer, decompile, or disassemble the Service except to the extent a law expressly permits it notwithstanding this restriction;
- circumvent, disable, or interfere with license checks, subscription entitlements, or security features;
- scrape, crawl, or harvest the Site other than through good-faith search indexing;
- use the Service to violate any law or the rights of any person, or to develop a competing product;
- probe, scan, or test the vulnerability of the Service without our prior written authorization.
11. Intellectual property; feedback
The Service, including its software, design, text, graphics, logos, and trademarks, is owned by Omniscient Labs or its licensors and protected by intellectual-property laws. Data you enter into the App remains yours — we claim no ownership of it and, because it never reaches us, we take no license to it. If you send us feedback or suggestions, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use them without restriction or compensation.
12. Third-party services and platforms
The Service interoperates with third-party services and platforms — including Apple App Store, Google Play, Apple Health (HealthKit), Android Health Connect, RevenueCat, and the share/export targets you choose (email, messaging, printing, files). Your use of those services is governed by their own terms and privacy policies. We are not responsible for third-party services, their availability, their data handling, or any sync errors, data corruption, or inaccuracies originating from them. Once you export or share data (for example, a PDF report), its handling by the recipient or destination service is entirely outside our control and responsibility.
13. Health platform integrations
Connecting Apple Health or Health Connect is optional and controlled by you through operating-system permission prompts. You may revoke permissions at any time in your device settings. We disclaim all liability arising from health-platform behavior, including missing, duplicated, delayed, or inaccurate records supplied by those platforms or by the third-party devices and apps that write to them.
14. Service availability, changes, and discontinuation
We may modify, suspend, or discontinue the Service or any feature at any time, with or without notice, including by over-the-air updates. We do not guarantee that the Service will be available, uninterrupted, error-free, or compatible with any particular device or OS version, or that any feature will be maintained indefinitely. If we permanently discontinue the App, the local-first design means your data remains on your device and exportable for as long as your installed copy continues to run, but we have no obligation to provide continued compatibility, support, or updates.
15. Assumption of risk
You knowingly and voluntarily assume all risks of using the Service, including the risk that logged data, calculations, categories, trends, insights, reminders, alerts, or reports may be incomplete, inaccurate, delayed, or unavailable, and the risk of any health-related decision you or any clinician makes in reliance on them. You are solely responsible for decisions about your health.
16. Warranty disclaimer
To the maximum extent permitted by applicable law, the Service is provided “as is” and “as available”, with all faults and without warranty of any kind. We expressly disclaim all warranties, whether express, implied, statutory, or otherwise, including any warranties of merchantability, fitness for a particular purpose, title, non-infringement, accuracy, reliability, availability, or that the Service will be uninterrupted, secure, or error-free. No advice or information, whether oral or written, obtained from us or through the Service creates any warranty. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above exclusions may not apply to you.
17. Limitation of liability
To the maximum extent permitted by applicable law: (a) in no event will Omniscient Labs or its owners, officers, employees, contractors, agents, licensors, or suppliers be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, goodwill, or data, or for personal injury, death, or property damage, or for the cost of substitute services, arising out of or relating to the Service or these Terms, under any theory of liability (contract, tort, negligence, strict liability, statute, or otherwise), even if advised of the possibility of such damages and even if a remedy fails of its essential purpose; and (b) our total aggregate liability for all claims arising out of or relating to the Service or these Terms will not exceed the greater of (i) the amounts you paid us through the Service in the twelve (12) months before the event giving rise to the claim and (ii) fifty U.S. dollars (US $50). The exclusions and limitations in this section apply to the fullest extent permitted by law; where a jurisdiction does not allow a particular exclusion or limitation (including for gross negligence, willful misconduct, or statutory consumer rights that cannot be waived), liability is limited to the smallest amount and narrowest scope that law permits. These limitations are a fundamental basis of the bargain between you and us, and the Service would not be offered at its price without them.
18. Indemnification
To the maximum extent permitted by law, you will defend, indemnify, and hold harmless Omniscient Labs and its owners, officers, employees, contractors, agents, licensors, and suppliers from and against any claims, damages, liabilities, losses, costs, and expenses (including reasonable attorneys’ fees) arising out of or relating to: (a) your use or misuse of the Service; (b) your breach of these Terms or violation of any law or third-party right; (c) data you enter, import, export, or share, including any report you provide to any person; or (d) any health-related decision made by you or any third party in reliance on information from the Service. We may assume the exclusive defense of any matter subject to indemnification, in which case you will cooperate with us.
19. Termination
You may stop using the Service at any time; uninstalling the App deletes its on-device data. We may suspend or terminate your license immediately, with or without notice, if you breach these Terms or where required by law or by our platform partners. Upon termination, your license ends and you must cease use and uninstall the App; store-billed subscriptions remain governed by Apple/Google cancellation rules. Sections 2–4, 7–8, 11–12, and 15–29 survive termination.
20. Governing law
These Terms and any dispute arising out of or relating to them or the Service are governed by the laws of the State of Delaware, USA, without regard to its conflict-of-laws rules, except that Section 22 is governed by the U.S. Federal Arbitration Act. If you are a consumer in a jurisdiction whose laws grant you mandatory protections or a mandatory venue that cannot be waived, those protections remain unaffected.
21. Informal resolution first
Before filing any claim, you agree to contact us at cuffapp@gmail.com with a written description of the dispute and give us 60 days to resolve it informally. Most concerns can be resolved this way. This step is a precondition to starting arbitration or litigation.
22. Binding arbitration, class action waiver, and jury trial waiver
Please read this section carefully — it affects your legal rights.
Arbitration on an individual basis. Except for the carve-outs below, any dispute, claim, or controversy arising out of or relating to the Service or these Terms that is not resolved informally under Section 21 will be resolved exclusively by final and binding arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, unless prohibited by applicable law in your jurisdiction. The seat of arbitration shall be Delaware; hearings may be conducted remotely (by video or telephone) or, if an in-person hearing is required, in the county where you reside. Judgment on the award may be entered in any court of competent jurisdiction. The arbitrator, not a court, decides all issues except that a court decides the enforceability of this arbitration agreement and of the class waiver. AAA fees will be allocated under the AAA Consumer Arbitration Rules where they apply.
Class action waiver. ALL CLAIMS MUST BE BROUGHT IN THE PARTIES’ INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE, CONSOLIDATED, OR REPRESENTATIVE PROCEEDING. The arbitrator may not consolidate more than one person’s claims. If this class waiver is found unenforceable as to a particular claim, that claim (and only that claim) must proceed in court, and the remainder of this arbitration section is severed only to that extent.
Jury trial waiver. TO THE EXTENT ANY DISPUTE PROCEEDS IN COURT RATHER THAN ARBITRATION, BOTH PARTIES KNOWINGLY AND IRREVOCABLY WAIVE ANY RIGHT TO A TRIAL BY JURY.
Carve-outs. This arbitration agreement does not apply to: (a) individual claims in small-claims court that qualify there; (b) injunctive or equitable relief to protect intellectual-property rights; or (c) claims that applicable law says cannot be arbitrated.
Mass filings. If 25 or more similar arbitration demands are filed by or with the assistance of coordinated counsel, the parties agree the demands will be batched and resolved in staged proceedings consistent with applicable AAA mass-arbitration procedures, and filing fees will be due only as each batch proceeds.
30-day opt-out. You may opt out of this arbitration agreement and class waiver by emailing cuffapp@gmail.com within 30 days of first accepting these Terms, with the subject line “Arbitration Opt-Out” and your name and the date you first used the App. Opting out does not affect any other provision of these Terms.
Venue for non-arbitrable claims. Any claim not subject to arbitration (other than small-claims matters) must be brought exclusively in the state or federal courts located in Delaware, and both parties consent to personal jurisdiction there.
23. One-year limitation period
To the extent permitted by applicable law, any claim arising out of or relating to the Service or these Terms must be filed within one (1) year after the claim accrued; otherwise it is permanently barred.
24. Apple-required provisions (iOS users)
These Terms are between you and Omniscient Labs only — not with Apple Inc. (“Apple”). Apple is not responsible for the App or its content. Apple has no obligation to furnish any maintenance or support for the App. In the event of any failure of the App to conform to an applicable warranty, you may notify Apple and Apple will refund the purchase price (if any) you paid Apple for the App; to the maximum extent permitted by law, Apple has no other warranty obligation. Apple is not responsible for addressing any claims by you or a third party relating to the App, including product liability claims, claims that the App fails to conform to legal or regulatory requirements, consumer-protection claims, and claims regarding intellectual property infringement. You represent that you are not located in a country subject to a U.S. government embargo or designated a “terrorist supporting” country, and that you are not on any U.S. government list of prohibited or restricted parties. You must comply with applicable third-party terms (e.g., your wireless carrier’s). Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you. Use of the App is also subject to Apple’s standard Licensed Application End User License Agreement to the extent not inconsistent with these Terms.
25. Google Play provisions (Android users)
If you obtained the App from Google Play, your use is also subject to the Google Play Terms of Service. Google is not a party to these Terms and has no obligations or liability under them.
26. Export controls and sanctions
You may not use, export, or re-export the App except as authorized by U.S. law and the laws of the jurisdiction in which you obtained it, and you represent that you are not a person or entity with whom U.S. persons are prohibited from transacting.
27. Force majeure
We are not liable for any delay or failure to perform resulting from causes beyond our reasonable control, including acts of God, natural disasters, epidemics, war, terrorism, labor disputes, governmental action, utility or internet failures, and failures of platform partners or service providers.
28. No AI features
The current version of the Service contains no artificial-intelligence-generated content or AI processing. If a future version adds AI features, additional disclosures and terms will apply and will be presented before use; AI output, if ever offered, would be informational only and subject to the disclaimers in Sections 2–4.
29. General provisions
Entire agreement; no reliance. These Terms and the Privacy Policy are the entire agreement between you and us regarding the Service and supersede all prior agreements and representations. You acknowledge that you have not relied on any statement not set out in these Terms, including any description of the Service in marketing materials, store listings, or screenshots. Severability. If any provision is held unenforceable, it will be enforced to the maximum extent permissible and the remainder will remain in effect. No waiver. Our failure to enforce any provision is not a waiver. Assignment. You may not assign these Terms; we may assign them in connection with a merger, acquisition, or sale of assets. No third-party beneficiaries except as stated in Section 24. Independent parties. Nothing in these Terms creates any partnership, joint venture, employment, or agency relationship. Notices. We may provide notices through the App, the Site, or the app stores; you may notice us at the email below. Governing language. These Terms are drafted in English; any translation is for convenience and the English version controls. Survival. All provisions that by their nature should survive termination do so.
30. Changes to these Terms
We may update these Terms from time to time. Material changes will be posted on this page with a new effective date, and where required we will provide additional notice through the App or the stores. Your continued use of the Service after the effective date constitutes acceptance of the updated Terms. If you do not agree to a change, stop using the Service and cancel any subscription before your next renewal.
31. Contact
Omniscient Labs — cuffapp@gmail.com