Disclaimer & Limitation of Liability

Effective Date: 26 September 2026 — Last Updated: 26 September 2026

PLEASE READ THIS DISCLAIMER CAREFULLY. By using Trefnus CMMS, you acknowledge and agree to the terms set out below. This Disclaimer supplements and forms part of the Terms of Service. If anything in this Disclaimer conflicts with the Terms of Service, the Terms of Service prevail. Nothing in this Disclaimer affects the statutory rights of consumers.

1. General Disclaimer

Trefnus CMMS (the "Application") is a computerised maintenance management tool designed to help users organise and track maintenance activities. It is an organisational aid.

The Application does not provide professional engineering advice, safety assessments, regulatory compliance guidance, or any other form of professional advice.

2. No Professional Advice

Nothing in the Application, its documentation, or our website (including our articles and guides) constitutes:

Professional engineering, mechanical, electrical, or safety advice;
Certified maintenance planning or scheduling;
Regulatory or legal compliance advice, including on statutory inspection regimes;
Health and safety assessments or risk evaluations;
Accounting, tax, insurance, financial, or legal advice;
A substitute for qualified professional inspection, assessment, or certification.

You should always consult qualified professionals for maintenance decisions, safety-critical tasks, and regulatory compliance matters.

3. No Guarantee of Accuracy

The Application works from the data entered by its users. We make no representation that:

Any data stored in the Application is accurate, complete, or reliable;
Any maintenance schedule, interval, due date, meter threshold, or reminder is correct or appropriate for your equipment;
Any maintenance procedure, checklist, or template is suitable for your circumstances;
Any report, dashboard figure, or export is accurate or complete.

The Application's outputs are only as accurate as the data put into it.

4. Financial and Reliability Figures

Depreciation, book value, life cycle cost estimates, and reliability measures (such as MTBF and MTTR) are calculated from the data you enter using the methods you select. They are estimates for management information only. They are not accounting, tax, valuation, or engineering advice, and must not be relied on for statutory accounts, tax returns, insurance valuations, or safety decisions without independent professional review.

5. Safety-Critical Disclaimer

CRITICAL SAFETY WARNING: The Application is NOT designed, intended, or certified as a safety system. This includes, but is not limited to:

Life-safety systems (fire detection and suppression, emergency systems, medical equipment);
Safety-critical infrastructure (bridges, tunnels, structural components);
Nuclear, aviation, rail, or maritime safety systems;
Pressure systems, lifting equipment, or other safety-critical mechanical systems;
Any application where failure to perform maintenance could result in death, personal injury, or significant property damage.

You may record such equipment in the Application, but YOU MUST NOT rely solely on the Application to schedule or track safety-critical maintenance or statutory examinations. Independent safety management systems, competent persons, and applicable regulatory frameworks must always be used.

6. Statutory and Regulatory Compliance

The Application includes features for recording statutory and conformity activities and their due dates. However:

The Application does not guarantee compliance with any law, regulation, standard, or code of practice;
Due dates and reminders are calculated from user-entered data and may be incomplete or incorrect;
The Application only shows reminders when it is opened. It does not send emails, text messages, or push alerts when it is closed;
You are solely responsible for ensuring compliance with all applicable regulations;
The Application does not replace mandatory inspection regimes, written schemes of examination, or certified compliance programmes;
Failure of the Application to show a reminder does not relieve you of any legal obligation.

7. Data Loss and Integrity

Your records are stored on your own devices, not by us. The Application provides tools to help protect your data (automatic restore points, backup files, a backup folder, and optional backup and sync through your own Dropbox account), but these run on your devices and depend on how you set them up. We do not hold a copy of your data and cannot recover it. Data may be lost due to:

Clearing browser data, or the browser or operating system removing stored data;
Uninstalling the Application or removing it from your device;
Device failure, theft, or loss;
Losing both your password and your recovery key, as your data is encrypted and cannot then be decrypted by anyone, including us;
Losing your cloud sync passphrase, as the copy in your Dropbox account cannot then be decrypted;
Browser, operating system, or third-party service changes;
Corruption of browser storage.

YOU ARE RESPONSIBLE FOR MAKING, KEEPING, AND CHECKING BACKUPS OF YOUR DATA, INCLUDING A COPY KEPT AWAY FROM THE DEVICE. Our liability for data loss is limited as set out in the Terms of Service.

8. Access Controls

The Application's individual sign-in, access levels, and automatic sign-out help you organise who does what. Because the Application runs entirely on your devices, they are not a security boundary: a person with access to a signed-in device and technical knowledge may be able to read or change data regardless of their access level. Keep devices physically secure and do not rely on in-app access levels as your only control.

9. Equipment and Asset Disclaimer

The Application may be used to track maintenance of equipment, machinery, vehicles, and other assets. To the extent permitted by law, we are not responsible for:

Equipment failure, breakdown, or malfunction;
Damage to property arising from maintenance performed or not performed;
Loss of production, downtime, or business interruption;
Consequences of relying on data stored in the Application;
Incorrect or missed maintenance schedules;
Costs of repair, replacement, or remediation.

Nothing in this Section excludes our liability for death or personal injury caused by our negligence.

10. Offline Use and Synchronisation

The Application is designed to work offline. While a device is offline:

The licence cannot be verified and access continues on the basis of the last successful verification;
Features that need the internet (such as Dropbox sync, map images not already cached, and licence activation) are unavailable;
Changes made on the device are not copied to your other devices or to Dropbox until it reconnects and syncs.

When two devices change the same record while apart, the most recent change may take precedence. Check important records after syncing.

11. Third-Party Services

The Application uses or connects to third-party services, including Supabase (licensing and sign-in), Cloudflare (hosting), Dropbox (optional backup and sync using your own account), and map tile providers such as the OpenStreetMap Foundation. We do not control these services and, to the extent permitted by law, are not responsible for:

Their availability or uptime;
Security breaches or data loss at those providers;
Changes to or withdrawal of their services that affect the Application;
Content they provide, including the accuracy of map imagery.

12. Limitation of Liability

Our liability to you is set out in, and limited by, Section 16 of the Terms of Service. In summary:

Nothing excludes or limits liability for death or personal injury caused by our negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be excluded or limited by law;
For business customers, we are not liable for loss of profits, business interruption, indirect or consequential loss, or losses arising from maintenance, safety, or compliance activities managed through the Application, and our total liability is limited to the amount paid for the Application;
For consumers, we are responsible for foreseeable loss caused by our breach or lack of reasonable care and skill, and your statutory rights are not affected.
Fixes, support, and the licensing service are provided for a 12-month Support Period from purchase, and are limited in scope, as set out in Section 13 of the Terms of Service. The Application continues to work on activated devices after it ends, and before we permanently stop the licensing service we will release a final version that works without it.

13. Your Responsibilities

By using the Application, you acknowledge that:

You are responsible for your maintenance, safety, compliance, and business decisions, and those of your personnel;
You do not rely on the Application as the sole basis for any maintenance, operational, safety, or business decision;
You will keep backups and, where the law or your insurer requires, independent records;
You understand the limitations of data stored on your own devices.

14. Insurance Disclaimer

The Application is not an insurance product and does not provide any form of cover or indemnity. Using the Application does not by itself satisfy any insurance requirement. You should maintain appropriate insurance for your equipment, assets, and business operations.

15. No Endorsement

The inclusion of any feature, category, template, or option in the Application does not constitute an endorsement or recommendation of any particular maintenance practice, product, service, or provider.

16. Governing Law

This Disclaimer is governed by the laws of England and Wales, and disputes are dealt with as set out in the Terms of Service.

17. Contact

For questions about this Disclaimer, please contact:

Trefnus (Darren Jolley, sole trader)
Email: apps.trefnus@gmail.com