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DISCLAIMER.md

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Disclaimer, Trademark & Good-Faith Notice

1. Independent & unofficial

This is an independent, unofficial, non-commercial project by an individual hobbyist. It is not affiliated with, endorsed by, sponsored by, or connected to WHOOP, Inc. in any way. All references to "WHOOP" describe the third-party hardware this software interoperates with and are nominative fair use of the mark — used only to identify that hardware, never to imply origin, sponsorship, or endorsement, and never as the name of this project's own product or brand.

"WHOOP" and any related marks are the property of WHOOP, Inc. All other trademarks belong to their respective owners.

Use it only with a device you own, and do not use this project in breach of any agreement that applies to you. This software does not encourage or require you to violate any terms you have agreed to; how you use hardware you own is your responsibility.

2. No proprietary material is contained or redistributed

This repository contains only original work authored by the project's contributors, plus factual protocol observations. Some protocol facts were confirmed by examining the official app for the sole purpose of interoperability — an activity expressly permitted by 17 U.S.C. § 1201(f) and analogous interoperability provisions (see §3). No such material is reproduced, redistributed, or included here. Specifically, this repository does NOT contain, bundle, mirror, or link to any of the following:

  • WHOOP application binaries, APKs, IPAs, or installers;
  • WHOOP firmware, firmware images, or extracted firmware;
  • decompiled, disassembled, or reverse-compiled WHOOP source code;
  • WHOOP source code, headers, or build artifacts of any kind;
  • WHOOP logos, icons, artwork, fonts, screenshots, or other copyrighted/branded assets;
  • any WHOOP account credentials, API secrets, or server endpoints.

Application icons, color choices, and UI in this project are original creations. Any similarity to a generic "dark fitness app" aesthetic is coincidental and not copied from any protected work. Protocol facts (frame layout, command identifiers, field offsets) are uncopyrightable factual information about how bytes appear on a wire, documented through the author's own observation of traffic to and from a device the author owns.

3. Nature of the work: interoperability & security research

The purpose of this project is to allow a person who owns a WHOOP 4.0 device to read their own biometric data from their own device in an interoperable way, and to study the device for educational and security-research purposes.

  • It operates only with the user's own device and the user's own data.
  • It does not circumvent any technological protection measure protecting a copyrighted work, and does not bypass any subscription, paywall, login, or account control.
  • Reverse engineering undertaken solely to achieve interoperability of an independently created program with other programs is a protected activity under, among others, 17 U.S.C. § 1201(f) (U.S.) and comparable interoperability and research provisions in other jurisdictions.
  • Nothing here is intended to compete with, devalue, or harm WHOOP's products, services, or business. Users are encouraged to maintain an active relationship with the official product.

4. Personal & educational use only — no warranty

This software is provided for personal and educational use only, as-is, with no warranty of any kind, express or implied. You use it entirely at your own risk, including any risk to your device, data, or warranty status. The authors accept no liability for any damage, loss, or consequence arising from its use. Review your own agreements and local laws before use; you are responsible for your own compliance.

5. Not a medical device

Outputs such as heart rate, HRV, recovery, strain, sleep stages, SpO₂, respiratory rate, and skin temperature are approximations computed from published methods. They are not clinically validated, are not a medical device, and are not medical advice. Do not use them to diagnose, treat, or make health decisions. Consult a qualified professional.

6. Good-faith takedown contact

This project is shared in good faith and the author wants to respect others' rights. If you are WHOOP, Inc. (or another rights holder) and believe anything in this repository infringes your rights, please contact the author directly via a GitHub issue or the email on the author's GitHub profile before filing a formal complaint. The author will review promptly and, where a concern is well-founded, will cooperate — including editing or removing the material in question.

The author's intent is interoperability and research, not infringement; most concerns can be resolved quickly and amicably through direct contact.