Last updated: June 2026 · Effective immediately
1. Acceptance of Terms
By accessing or using Stack ("the Service"), you agree to be bound by these Terms of Service. If you do not agree, do not use the Service.
2. Description of Service
Stack is an AI-powered longevity analysis tool that scans food and supplement products and scores them against 14 biological mechanisms relevant to healthy aging. The Service provides informational content generated by artificial intelligence.
3. Health & Medical Disclaimer
Stack is not a medical device, healthcare provider, or licensed medical service. All content is for informational purposes only and does not constitute medical advice, diagnosis, treatment, or prevention of any disease or health condition. Always consult a qualified healthcare provider before starting any supplement, dietary, or health protocol. Do not disregard professional medical advice or delay seeking it because of information provided by this Service.
4. AI-Generated Content
Analysis results are generated by large language models (AI) and may contain errors, inaccuracies, or outdated information. AI-generated scores and recommendations reflect probabilistic outputs, not verified clinical findings. You should independently verify any information before acting on it.
5. User Responsibilities
You agree to use the Service for personal, non-commercial informational purposes only. You must not use Stack as a substitute for professional medical advice. You are solely responsible for any decisions made based on information provided by this Service.
6. Payment Terms
Stack offers a free tier with limited scans per month and a Stack Pro subscription with unlimited scans and additional features. Subscription fees are billed monthly. You may cancel at any time through your account settings. Cancellation takes effect at the end of the current billing period.
7. Refund Policy
Subscription fees are non-refundable except where required by applicable law. If you believe you were charged in error, contact us within 30 days at ajassovlsf@gmail.com and we will review your case.
8. Limitation of Liability
To the fullest extent permitted by law, Stack and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of health, financial loss, or data loss, arising from your use of or reliance on the Service.
9. Governing Law
These Terms are governed by the laws of the United States. Any disputes shall be resolved in the courts of competent jurisdiction in the United States.
10. Contact
For questions about these Terms, contact us at ajassovlsf@gmail.com.
These terms will be superseded by a formally drafted agreement once legal counsel has been obtained. Use of the Service constitutes acceptance of the most current version of these terms.