Terms of Service — Addendum for Tend & Mend (Human IBS/IBD App)
This Addendum supplements the Tend & Mend End User License Agreement (EULA). In the event of a conflict, this Addendum controls for the Tend & Mend human App.
Last updated: April 23, 2026
- Eligibility and Age
You must be at least 18 years old to use this App. By using the App, you represent that you are 18 or older.
- Not a Medical Device
Tend & Mend is a wellness and self-experimentation tool, not a medical device. It is not intended to diagnose, treat, cure, prevent, or mitigate any disease or medical condition.
The App is not cleared, certified, or authorized by:
the United States Food and Drug Administration (FDA)
Health Canada
the European Medicines Agency or any Notified Body under the EU Medical Device Regulation
the United Kingdom Medicines and Healthcare products Regulatory Agency (MHRA)
any other regulatory authority
- Not Medical Advice
Information provided by the App — including statistical estimates, posterior probabilities, risk ratio estimates, trigger confirmation or rejection results, and any text generated by natural-language features — is for informational and self-tracking purposes only. It is not medical advice.
Do not:
Rely on the App to diagnose irritable bowel syndrome, inflammatory bowel disease, food allergies, food intolerances, or any other condition
Use the App's output as a substitute for consultation with a qualified healthcare professional
Start, stop, or change any diet, medication, or treatment based solely on the App's output
Ignore medical advice or delay seeking care because of something you read or saw in the App
Always consult a qualified healthcare professional (your physician, registered dietitian, or other licensed provider) before making changes to your diet or treatment plan, especially if you have a diagnosed medical condition such as inflammatory bowel disease, celiac disease, or a food allergy.
- Emergency Use
The App is not for emergency use. If you are experiencing a medical emergency, severe symptoms, signs of an acute flare, blood in stool, severe abdominal pain, unexplained weight loss, or any other concerning symptom, contact emergency services or your healthcare provider immediately. Do not use the App in place of emergency care.
- Health Data Consent
By using this App, you acknowledge and expressly consent to the following:
The information you log (including Bristol Stool Scale scores, symptom entries, food entries, and suspected food triggers) constitutes health data under the EU General Data Protection Regulation, the UK GDPR, the California Consumer Privacy Act, the Washington My Health My Data Act, and other applicable laws.
You consent to our processing of this health data solely for the purposes described in our Privacy Policy.
If you use the natural-language logging feature (voice or text chat), you consent to the text of your messages being transmitted to the Claude API operated by Anthropic PBC for processing, as further described in our Privacy Policy.
You may withdraw this consent at any time by disabling the relevant feature, deleting your account, or deleting the App.
- Statistical Method Disclosure
The App uses a Bayesian Beta-Binomial statistical model to estimate whether a food you nominate is a probable trigger for adverse bowel outcomes. This is a statistical estimate based on your own logged data, not a clinical diagnosis of food intolerance, food allergy, or any other condition.
Statistical estimates have inherent uncertainty. The App's output depends on the quantity and quality of data you log, the accuracy of your self-report, and the absence of confounding factors that the App does not measure (such as stress, medications, sleep, other foods, or concurrent illness). Two users with identical inputs but different underlying physiology may receive different estimates, and no estimate constitutes proof of causation.
- Limitation of Liability
To the fullest extent permitted by applicable law, Ben McNair-Kim and Tend & Mend shall not be liable for any direct, indirect, incidental, consequential, special, or punitive damages arising out of or related to your use of the App, including but not limited to any health outcome, dietary decision, delayed medical care, or reliance on any output of the App.
You use the App at your own risk. You are solely responsible for any decisions you make based on information provided by the App.
- Indemnification
You agree to indemnify and hold harmless Ben McNair-Kim and Tend & Mend from any claims, damages, liabilities, or expenses (including reasonable legal fees) arising from: (a) your use of the App; (b) any decision you make based on the App's output; (c) your violation of these Terms; or (d) your violation of any law or third-party right.
- Jurisdiction-Specific Terms
European Economic Area, United Kingdom, Switzerland: Nothing in this Addendum limits any rights you have as a consumer under applicable mandatory consumer protection law, including your rights under the GDPR and national consumer protection statutes.
California: Nothing in this Addendum limits your rights under the CCPA/CPRA. If you wish to exercise your privacy rights, see our Privacy Policy.
Washington State: Nothing in this Addendum limits your rights under the Washington My Health My Data Act. See our Privacy Policy for how to exercise these rights.
Quebec: Nothing in this Addendum limits your rights under the Act Respecting the Protection of Personal Information in the Private Sector.
- Contact
Questions about these Terms: [email protected]
End of Addendum.
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