Terms of Use

By creating an ISOS account or using the ISOS Fuel app, website, or related services (“Services”), you agree to these Terms. If you do not agree, do not use the Services.

ISOS provides tools for logging nutrition, linking fuel to training, and optionally tracking gut-related signals for personal performance context. Features may change as we improve the product. Some integrations (for example Garmin or TrainingPeaks) may be marked coming soon and are not guaranteed.

ISOS is for informational and training-support use only. It is not a medical device and does not provide medical, dietary, or clinical advice. Culprit rankings, allergen/sensitivity flags, barcode data, and photo or ingredient estimates can be incomplete or wrong. Always check packaging and consult a qualified clinician for allergies, diagnosis, or treatment. If you have a medical emergency, seek emergency care.

You must provide accurate registration details and keep your password confidential. You are responsible for activity under your account. Notify us promptly if you suspect unauthorised access. We may suspend or terminate accounts that abuse the Services, attempt to disrupt them, or violate these Terms.

You retain ownership of the meal logs, notes, and other content you submit. You grant ISOS a limited licence to host, process, and display that content solely to operate and improve the Services. You must not upload unlawful, infringing, or harmful content.

You agree not to reverse engineer the Services except where permitted by law; scrape or overload our systems; bypass security; misuse another person’s data; or use ISOS to provide clinical care to others.

Optional connections (e.g. Strava, Health platforms, food databases) are governed by those providers’ terms and privacy policies. We are not responsible for third-party outages or data practices outside our control.

If you enable meal sharing, codes you create may reveal meal composition to anyone who redeems them before expiry. Do not share codes with people you do not trust. Share payloads are designed to exclude GI flags and biometric health data.

Paid plans, if offered, will be described in the app or store listing. Taxes and store billing terms (Apple / Google) may apply. Unless required by law, fees are non-refundable except as stated in the applicable store’s refund rules.

ISOS branding, software, and site content are owned by us or our licensors. You may not copy, modify, or distribute them except as allowed by these Terms or with written permission.

The Services are provided “as is” and “as available” to the fullest extent permitted by law. We do not warrant uninterrupted or error-free operation, or that insights will meet your athletic or health goals.

To the fullest extent permitted by law, ISOS and its operators will not be liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or training outcomes arising from your use of the Services. Our total liability for any claim relating to the Services is limited to the greater of (a) the amounts you paid us for the Services in the 12 months before the claim or (b) £50. Nothing in these Terms excludes liability that cannot be excluded under applicable law (including for death or personal injury caused by negligence, or fraud).

You may delete your account in the app at any time. We may suspend or end access if you breach these Terms or if we discontinue the Services. On deletion, your right to use the Services stops; provisions that should survive (including ownership, disclaimers, and liability limits) will survive.

We may update these Terms and will post the new version with an updated date (currently 11 November 2026). Continued use after changes become effective constitutes acceptance, except where local law requires additional consent.

These Terms are governed by the laws of England and Wales, without regard to conflict-of-law rules. Courts of England and Wales have exclusive jurisdiction, except that consumers may bring claims in their local courts where required by mandatory law.

Questions about these Terms: hello@isosfuel.com. Support: support@isosfuel.com.