Effective Date: 26 September 2026 — Last Updated: 26 September 2026
The Application is designed and sold for business use. Where a Section says it applies only to Business Customers, it does not apply to Consumers. If you are a Consumer, nothing in these Terms affects your statutory rights, including your rights under the Consumer Rights Act 2015 and the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013.
The Application is a tool for recording, organising, and managing maintenance-related information. It does not monitor equipment in real time, guarantee maintenance outcomes, or ensure regulatory compliance.
The Application is "local-first": Your Data is stored on your own Devices. We do not host, receive, or hold a copy of Your Data. The Application also offers optional features that you choose whether to use, including:
The Application connects to our licensing service to activate your licence and to check periodically that it is still valid (see Section 12).
By buying a licence, activating a licence, or otherwise accessing the Application, you acknowledge that you have read, understood, and agree to be bound by these Terms, our Privacy Policy, our Acceptable Use Policy, our Refund & Cancellation Policy, our Cookie & Local Storage Policy and our Disclaimer.
Our general Terms of Service on our website (www.trefnus.com/terms-of-service) apply to all of our apps and to your purchase. These Terms are the product terms for Trefnus CMMS and add to those general terms. If they conflict, these Terms prevail in relation to Trefnus CMMS.
Subject to your compliance with these Terms and payment of the applicable licence fee, we grant you a limited, non-exclusive, non-transferable licence to use the Application for your internal business purposes on up to the permitted number of Devices. Your licence is bought with a one-off payment and does not expire after a fixed period; it continues unless it is ended under Section 18. Updates, support, and the licensing service are provided for a limited Support Period, as set out in Section 13. The Application is licensed, not sold: you do not acquire ownership of the software.
You may NOT:
The Application is a web application. Updates are delivered automatically when your Device is online. We may change, improve, add, or remove features to keep the Application secure, to reflect changes in law, technology or third-party services, or to improve it. Our obligation to provide updates is limited to your Support Period and to what Section 13 describes. We will not make changes that materially reduce the core maintenance management functionality described at the time of your purchase, unless required by law, for security reasons, or because a third-party service we rely on is withdrawn. If you are a Consumer and a change has more than a minor negative effect on your use of the Application, you may have rights under the Consumer Rights Act 2015.
We are not obliged to support every browser, operating system, or device. System requirements may change over time.
Your licence permits activation on up to 5 Devices unless your purchase states otherwise. Each Device is identified by a randomly generated identifier stored in its browser. Using a different browser or browser profile, clearing site data, reinstalling the Application, or opening it at a different web address may register the same physical device again and use another slot. If you reach the limit, activation on a new Device will be refused until a slot is freed. You can view registered Devices in the Application, and you can contact support to release a Device you no longer use.
To use the Application, you must activate a licence using a verified email address. You are responsible for:
We never receive your device password, users' passwords, your recovery key, or your cloud sync passphrase, and we cannot reset or recover them. Your Data is encrypted on your Device. If you lose both your password and your recovery key, neither you nor we will be able to decrypt it.
The Application's individual sign-in, access levels, and automatic sign-out are organisational controls that run on your Device. Because the Application has no server of its own, they are not a security boundary: a person with access to a signed-in Device and technical knowledge may be able to bypass them. You must not rely on them as your only control over who can see or change Your Data.
We may suspend a licence if we reasonably suspect unauthorised or fraudulent activity (see Section 18).
You retain all ownership rights in Your Data. You acknowledge that:
Personal data in Your Data. If Your Data includes personal data (for example, names of staff and contractors, user accounts, labour and time records, supplier contacts, photographs, or the change log), you are the controller of that personal data and are responsible for complying with data protection law in relation to it, including having a lawful basis, informing the individuals concerned, keeping it secure and accurate, deciding how long to keep it, and responding to their requests. Because we do not receive or have access to Your Data, we do not process it on your behalf and do not act as your processor.
The Application relies on or can connect to third-party services, including: Supabase (authentication and licence management); Cloudflare (hosting and delivery of the Application); Dropbox (optional, using your own account); and map tile services such as the OpenStreetMap Foundation (map images). Your use of a Cloud Provider is governed by your own agreement with that provider. We do not control these services and, to the extent permitted by law, we are not responsible for their availability, performance, changes, or content. If a third-party service is changed or withdrawn, the related feature of the Application may stop working or be replaced.
Access to the Application requires a valid, paid licence. The licence fee is a one-off payment as shown at the time of purchase; there are no recurring subscription charges for the licence described in these Terms. Payments are processed by Polar Software, Inc., acting as our Merchant of Record, whose own buyer terms also apply to the payment. We do not receive or store your full payment card details. Fees are non-refundable except as set out in our Refund & Cancellation Policy or as required by law. We may change our prices for new purchases at any time; a price change does not affect a licence you have already bought. If a payment is reversed or charged back without good reason, we may suspend the licence until the matter is resolved.
You acknowledge that:
13.1 Your Support Period. Your "Support Period" is the 12 months starting on the date you bought your licence, as shown on your receipt. During your Support Period we will, on a reasonable-efforts basis:
13.2 What support does not include. Support is limited to what Section 13.1 describes. It does not include: training or onboarding; data entry, import, or migration; recovering, repairing, or restoring Your Data; setting up or troubleshooting devices, browsers, networks, or Cloud Provider accounts; problems caused by third-party services, browser extensions, or unsupported devices or browsers; new features, customisation, or feature requests; telephone, on-site, or remote-access support; or advice on engineering, safety, regulatory, or compliance matters.
13.3 Goodwill help. If we provide anything beyond Section 13.1, during or after your Support Period (for example extra updates, fixes, new features, or help with a question), we do so at our discretion as a goodwill gesture. It does not extend your Support Period, change the scope of support, or create any obligation to continue it or to provide it again.
13.4 No service levels. The Application's hosting, our licensing service, updates, and support are provided on a reasonable-efforts basis. We do not promise that they will be available at any particular time or without interruption. They may be interrupted for maintenance, by faults, or by the failure of a third-party service we rely on.
13.5 If the Application will not open during your Support Period. If, during your Support Period, a fault in our systems or in a third-party service we rely on stops the Application opening on your Devices, we will use reasonable efforts to restore access within a reasonable time. Your Data is held on your Devices and in your own backups and is not affected by an interruption to our services. If we have not restored access within 30 days of the interruption beginning, you may ask us for a refund of the licence fee you paid, reduced by one twelfth for each full month of your Support Period that had passed when the interruption began. You must ask for this refund by email within 30 days after that 30-day period ends; after that, this refund is no longer available. If you are a Business Customer, this Section 13.5 sets out your only remedies for any interruption to or unavailability of the Application or our services.
13.6 After your Support Period. When your Support Period ends, we have no further obligation to provide fixes, support, or the licensing service, and we may stop providing any of them at any time without notice to you. Your Licence continues, and the Application will continue to work on Devices that are already activated, as it is at that time.
13.7 Ending support early, and the final version. We may stop providing fixes, support, and the licensing service before your Support Period ends by giving you at least 30 days' notice by email, or as much notice as is reasonably practicable where this is caused by events beyond our reasonable control (including the insolvency of our business, a change in law, or the withdrawal of a third-party service we rely on). Section 13.6 then applies from the end of the notice period. Before we permanently stop the licensing service, whether during or after your Support Period, we will release a final version of the Application that works without licence verification, so that you can keep using it and activate it on new or replacement Devices. You should use any notice period to export Your Data.
13.8 Consumers. If you are a Consumer, nothing in this Section affects your statutory rights, including your rights if the Application is faulty, not as described, or does not conform to your contract.
The Application and all related intellectual property rights, including software code, design, graphics, logos, trademarks, and documentation, are and shall remain the property of Trefnus or its licensors. Third-party open-source components are licensed under their own terms. Nothing in these Terms grants you any right, title, or interest in our intellectual property except the Licence expressly granted in Section 5.
We will supply the Application with reasonable care and skill, and it will materially match the description of it available at the time of your purchase.
If you are a Consumer, the Application must also be of satisfactory quality and fit for purpose. If it is faulty, you may be entitled to a repair or replacement or, if that is not possible or not done within a reasonable time, a price reduction or refund. See the Citizens Advice website for more information.
If you are a Business Customer: except as expressly set out in these Terms, the Application is provided "as is" and "as available", and all warranties, conditions and other terms implied by statute or common law are excluded to the fullest extent permitted by law. In particular, we do not warrant that the Application will be uninterrupted, error-free, or free of harmful components, that it will meet your specific requirements, or that any data, calculation, schedule, or report it produces will be accurate or complete. If the Application does not materially match its description, your sole remedy is for us to use reasonable efforts to correct it or, if we cannot do so within a reasonable time, to refund the licence fee you paid.
No professional advice or reliance. The Application is a tool to assist with maintenance management. It is not a safety system and is not a substitute for professional engineering judgement, statutory inspection, regulatory compliance assessment, accounting or tax advice, or safety evaluation. Figures such as depreciation, book value, life cycle cost estimates, and reliability measures are calculated from the data you enter and are estimates only. You are solely responsible for your maintenance, safety, compliance, and financial decisions and their consequences. See our Disclaimer.
Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be excluded or limited under applicable law.
If you are a Business Customer, subject to the paragraph above:
If you are a Consumer: we are responsible for loss or damage you suffer that is a foreseeable result of our breaking these Terms or our failing to use reasonable care and skill, but we are not responsible for loss or damage that is not foreseeable. We supply the Application for business purposes; if you use it for commercial, business, or resale purposes, we have no liability to you for any loss of profit, loss of business, business interruption, or loss of business opportunity. If defective digital content that we have supplied damages a device or digital content belonging to you, we will either repair the damage or pay you compensation, unless the damage was caused by your failure to follow our instructions or to apply an update we offered free of charge.
If you are a Business Customer, you agree to indemnify Trefnus and its officers, employees and agents against all claims, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising out of or related to any third-party claim concerning:
except to the extent the claim is caused by our breach of these Terms or our negligence.
We may suspend or end your licence by notice if you materially breach these Terms and (where the breach can be put right) do not put it right within 14 days of our asking you to. We may suspend or end your licence immediately if we reasonably believe you have acted fraudulently, have not paid for your licence, have reversed your payment without good reason, or have seriously breached Section 5 (for example, by reselling access or circumventing device limits).
Except where we act for fraud, non-payment, or a serious breach, we will give you notice and a reasonable opportunity to export Your Data before a suspension or termination takes effect. On termination:
You may stop using the Application at any time. To close your licence account and have your licence data deleted, contact us (see our Privacy Policy). Refunds are dealt with under our Refund & Cancellation Policy and your statutory rights.
We may update these Terms to reflect changes in law, regulation, security, our services, or the Application. We will post the updated Terms with a new "Last Updated" date. If a change materially affects your rights, we will notify you by email or in the Application at least 30 days before it takes effect, unless the change is required sooner by law or for security reasons. If you do not agree with a change, you may stop using the Application before it takes effect; if you are a Consumer and the change is to your disadvantage, contact us and we will discuss your options, which may include a refund in line with your statutory rights.
You may not assign or transfer these Terms or your licence without our prior written consent. We may transfer our rights and obligations under these Terms to another organisation, for example if our business is sold. We will tell you if this happens and ensure the transfer will not adversely affect your rights under these Terms.
These Terms, and any dispute or claim arising out of or in connection with them, are governed by the laws of England and Wales. The courts of England and Wales have exclusive jurisdiction, except that if you are a Consumer living in Scotland or Northern Ireland you may also bring proceedings in your local courts, and if you are a Consumer living elsewhere you keep the protection of any mandatory provisions of the law of the country where you live.
Before starting legal proceedings, please contact us so we can try to resolve the matter informally. If that does not work, either of us may propose mediation. Mediation is voluntary and does not affect your right to go to court.
For questions about these Terms, please contact us at:
Trefnus (Darren Jolley, sole trader)
Email: apps.trefnus@gmail.com