Terms of Service

Auvi Trade — Building Regs & Calculators for UK Tradespeople

Last updated: 19 February 2026

What Auvi Trade is

Auvi Trade is a reference and calculation tool for UK tradespeople — electricians, plumbers, and gas engineers. It provides searchable Building Regulations content (Approved Documents), trade-specific calculators, fault-finding guides, and voice-powered Q&A, all running entirely on your device.

By downloading, installing, or using Auvi Trade (“the App”), you agree to these Terms. If you do not agree, please do not use the App.

Not a substitute for professional judgement — please read this

Important: Auvi Trade is an educational reference tool. It is not a substitute for:

• The official Building Regulations and Approved Documents
• BS 7671 (Requirements for Electrical Installations)
• Manufacturer installation instructions
• Professional qualifications, training, and competence
• Inspection and testing by a competent person
• Advice from your local Building Control Body

You are solely responsible for ensuring your work complies with all applicable regulations, standards, and manufacturer requirements. Calculations and reference content are provided as guidance tools to assist competent persons — they do not replace the need for professional judgement.

Safety-critical work: Electrical, gas, and plumbing installations can cause death, serious injury, or property damage if carried out incorrectly. Gas work must only be carried out by a Gas Safe registered engineer. Notifiable electrical work must be certified by a competent person or inspected by Building Control.

Accuracy

Calculations are derived from physics and engineering principles, cable manufacturer datasheets, and publicly available product standards. Reference content is based on Approved Documents published under the Open Government Licence. Both may contain errors, omissions, or become outdated due to regulatory amendments.

Do not rely solely on this app for safety-critical decisions. Always verify calculations and regulatory requirements independently, using current editions of the relevant standards and manufacturer data.

Content sources and copyright

Approved Documents: Reference content is derived from Approved Documents published by HM Government under the Open Government Licence v3.0. Crown copyright.

Calculations: All calculations are derived from physics and engineering first principles, conductor properties published by cable manufacturers, and publicly available product standards (e.g., EN 60898 for MCB characteristics). No copyrighted BS 7671 tables, IET publication text, or IET diagrams are reproduced.

BS 7671 references: The app references BS 7671 regulation numbers (e.g., “Regulation 411.3.2.1”) without quoting the regulation text. Users who need full regulation text should refer to their own copy of BS 7671.

Purchases

Auvi Trade is a one-time purchase. You pay once and receive all features and future updates.

All purchases are processed through the Apple App Store. Refunds are handled by Apple per their refund policy. We do not process payments directly.

Data and privacy

Your privacy matters. See our Privacy Policy for full details. The summary: no data is collected, and all processing happens on your device.

Acceptable use

Use the App only for lawful purposes. The App is intended for use by competent persons and persons undergoing training in the UK building trades.

Open-source acknowledgements

Auvi Trade incorporates open-source components. Full licence details and attribution are available in the App under Settings > Acknowledgements.

Disclaimer of Warranties

THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

Creative Machines does not warrant that:

• The App will meet your specific requirements
• Calculations will be accurate, complete, or error-free
• Reference content is current or reflects the latest regulatory amendments
• The App will operate without interruption or error
• Voice Q&A answers will be correct or complete

Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL CREATIVE MACHINES BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:

• Damages arising from reliance on calculation results
• Damages arising from reliance on reference content
• Damages arising from incorrect Voice Q&A answers
• Injury, death, or property damage resulting from electrical, gas, or plumbing work
• Legal consequences resulting from non-compliant installations
• Loss of profits or business opportunities

CREATIVE MACHINES’ TOTAL LIABILITY SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP.

Indemnification

You agree to indemnify, defend, and hold harmless Creative Machines from and against any claims, damages, losses, liabilities, and expenses (including legal fees) arising from:

• Your use of the App
• Your violation of these Terms
• Any claim that your reliance on the App caused damage or loss
• Any claim that your installations do not comply with applicable regulations

Termination

You can stop using Auvi Trade at any time by deleting it. These Terms remain in effect for as long as you use the App.

Changes to these terms

We may update these Terms at any time. Updated Terms will be posted at this URL. Continued use of the App after changes constitutes acceptance.

Governing law

These Terms are governed by the laws of Hong Kong SAR. Any disputes shall be subject to the exclusive jurisdiction of the courts of Hong Kong SAR.

Severability

If any provision of these Terms is held invalid or unenforceable, the remaining provisions continue in full force and effect.

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