Terms of Service

Last updated: 2 March 2026

These terms govern your use of the Deucalion® mobile application and web portal at deucalion.uk ("the Service"), operated by Deucalion® ("we", "us", "our"). By using the Service, you agree to these terms.

1. The Service

Deucalion® is a compliance inspection tool for smoke control and fire damper engineers. It provides digital checklists, photo evidence capture, certificate generation, defect tracking, quoting, and team management features.

2. Eligibility

You must be at least 16 years old and a qualified or trainee engineer (or authorised representative of an engineering firm) to use the Service. By creating an account, you confirm you meet these requirements.

3. Your account

You are responsible for maintaining the security of your account credentials. You must not share your login with others. If you believe your account has been compromised, contact us immediately. We may suspend accounts that show signs of unauthorised access.

4. Subscriptions and payment

Deucalion® offers a free tier and paid subscription plans. Paid subscriptions are billed through Apple (App Store) or Google (Play Store). Subscription management, billing, refunds, and cancellation are governed by the respective store's terms. We do not process payments directly.

We may change pricing or features with reasonable notice. Existing subscriptions will not be affected until the next renewal period.

5. Your data

You retain ownership of all inspection data, photos, reports, and other content you create using the Service. We do not claim any intellectual property rights over your content. See our Privacy Policy for details on how we handle your data.

6. Acceptable use

You agree not to:

7. AI features

The Service includes AI-powered features such as transcription, OCR, and analysis. These features are provided as productivity aids. AI-generated output may contain errors and should be reviewed before use in professional reports or compliance documents. You are responsible for the accuracy of any inspection data and reports you submit or share.

8. Compliance and professional responsibility

Deucalion® provides tools to support BS 7346-8 compliant inspections. However, compliance with applicable standards, regulations, and codes of practice remains your professional responsibility. The Service does not replace professional judgement, and we do not certify or guarantee that inspections conducted using the app meet any specific regulatory standard.

9. Availability and support

We aim to keep the Service available at all times but do not guarantee uninterrupted access. We may perform maintenance, updates, or modifications that temporarily affect availability. The offline features of the mobile app allow continued use during periods of connectivity loss.

10. Limitation of liability

To the maximum extent permitted by law, we are not liable for any indirect, incidental, or consequential damages arising from your use of the Service. Our total liability for any claim related to the Service is limited to the amount you paid us in the 12 months preceding the claim. Nothing in these terms limits liability for death, personal injury caused by negligence, fraud, or any other liability that cannot be excluded by law.

11. Termination

You may close your account at any time. We may suspend or terminate your access if you breach these terms. On termination, your right to use the Service ceases. We will retain your data in accordance with our Privacy Policy.

12. Changes to these terms

We may update these terms from time to time. Material changes will be communicated via the app or email at least 14 days before they take effect. Continued use of the Service after changes take effect constitutes acceptance.

13. Governing law

These terms are governed by the laws of England and Wales. Any disputes will be subject to the exclusive jurisdiction of the courts of England and Wales.

14. Contact

For questions about these terms, contact us at support@deucalion.uk.