Surf80 legal

Terms of Use

Last updated: August 28, 2026

Purpose of Surf80

Surf80 provides informational tools related to healthspan, fitness, lifestyle, laboratory measurements, and biological-age estimates.

Surf80 is intended to help users better understand health-related information and trends. It is not intended to diagnose, treat, cure, or prevent any disease.

Not medical advice

Surf80 does not provide medical diagnosis, treatment, or individualized medical advice. Information and results shown in the app are for informational and educational purposes only.

You should not use Surf80 as a substitute for professional medical advice, diagnosis, or treatment. Always seek appropriate professional care for medical concerns.

Do not disregard or delay seeking professional medical advice because of information displayed by Surf80.

Health and biological-age estimates

Biological-age scores, healthspan indicators, recommendations, risk signals, and other calculated outputs are estimates based on available data, algorithms, scientific research, and assumptions.

These estimates may be incomplete, inaccurate, or unsuitable for a particular individual’s circumstances and should not be interpreted as clinical diagnoses or guarantees of future health outcomes.

Your data and inputs

You are responsible for the accuracy of information you enter or import into Surf80, including questionnaire responses, laboratory measurements, dates, and other health information.

Automated extraction of laboratory information from PDFs or images may contain errors. You should review extracted values before relying on them.

Apple Health

Surf80 may use data that you choose to make available through Apple Health and HealthKit. Availability and accuracy of this data depend on Apple, connected devices, third-party applications, and the measurements themselves.

Use of the app

You agree not to misuse Surf80 or attempt to:

• interfere with the operation or security of the app;
• reverse engineer or exploit the app except where permitted by applicable law;
• use Surf80 for unlawful purposes; or
• misrepresent Surf80 results as professional medical diagnoses.

Third-party services and content

Surf80 may provide links to scientific publications, websites, or other external resources. Surf80 is not responsible for the availability, accuracy, content, or privacy practices of third-party services.

Availability and changes

Surf80 may be modified, updated, suspended, or discontinued at any time. Features, calculations, supported health metrics, and recommendations may change as the product and underlying scientific evidence evolve.

Disclaimer of warranties

To the maximum extent permitted by applicable law, Surf80 is provided on an “as is” and “as available” basis without warranties of any kind, express or implied.

We do not guarantee that Surf80 will be uninterrupted, error-free, completely accurate, or suitable for any specific medical or health purpose.

Limitation of liability

To the maximum extent permitted by applicable law, Surf80 and its developers will not be liable for indirect, incidental, special, consequential, or similar damages arising from use of, or inability to use, the app.

Nothing in these Terms excludes liability that cannot legally be excluded under applicable law.

Changes to these terms

We may update these Terms of Use as Surf80 evolves. The current version will be published on this page with its latest update date.

Contact

If you have questions about these Terms, contact us at support@surf80.com.