# TriboSolver end-user licence agreement

Version: 2026-09-14-owner-approved-v1

## 1. Parties and scope

This agreement concerns the TriboSolver software and its associated documentation, supplied by TriboNet, a Dutch sole proprietorship, KvK 75350548, VAT NL002481712B79, Waterlinie 117, 5658NB Eindhoven, The Netherlands. Contact: administration@tribology.eu. These seller details were supplied by the owner.

The software is licensed, not sold. Subject to the applicable order or grant and these terms, the named user receives a limited, non-exclusive, non-sublicensable right to use the software within the category and term granted. A quotation or application is not itself a licence grant.

## 2. Licence categories

### Personal

For one named individual undertaking personal learning and noncommercial analysis. Work for an employer, client or commercial deliverable is excluded even when unpaid. Paid consultancy, contract research and services for third parties are not included. Academic eligibility is a separate route.

### Professional / Commercial

For the named user's internal engineering, research, design and analysis within the licensee's organization. Consultancy and services or deliverables for third parties require a separate written agreement. The Professional product maps to the Commercial licence category; its label does not broaden those rights.

### Company quotation

The accepted written quotation identifies the authorized users, term and any separately agreed rights or support. One individual licence does not grant organization-wide or shared access. No seat count or additional rights arise merely from requesting a quote.

### Academic

Initially free by approved application for verified teaching, academic research and noncommercial publications. Commercial use, contract research, paid consulting and industrial deliverables are excluded unless separately agreed in writing. Institutional or alternative verification may be required. An application is not an approval.

### Trial

For evaluation only, for 15 days beginning on the day the trial is requested. No repeat trial is granted by changing an email address, reinstalling or changing computers. Recovery of the same trial preserves its original term. Any actual functional limitations must be disclosed before the request; these terms do not assert that unverified restrictions exist.

## 3. Named user, computers and reassignment

The same named user may use their own desktop and laptop, including a replacement computer. Licences must not be shared between people. Changing the named user requires prior administration review and written approval; it is not automatic and must not expand the original term or rights without a separately approved grant.

## 4. Term, expiry and renewal

Paid annual terms are calculated from the authoritative purchase/payment timestamp plus 24 hours, then one calendar year in UTC, with 29 February clamped to 28 February where needed. The resulting calendar date is the licence expiry date. Academic annual terms use the recorded grant/issuance event instead of a payment timestamp.

A valid issued licence can be used immediately: the application checks expiry, not a future start date. The current application accepts the expiry date inclusively according to the computer's local calendar date. Recovery and delayed delivery do not reset the term. Trials use their original request day, not the annual plus-24-hour rule.

## 5. Updates and support

Updates released during the active licence term are included without an additional licence fee. There is no guaranteed release schedule or lifetime entitlement. Support, training, consulting and bespoke development are not included unless separately arranged. This does not exclude mandatory legal remedies or any update obligations that cannot lawfully be excluded.

## 6. Restrictions and ownership

Do not share or sublicense a licence, redistribute the software without permission, remove proprietary notices or bypass licence enforcement. Modification, reverse engineering and similar restrictions apply only to the extent permitted by applicable law; legally protected exceptions are not removed by these terms.

Rights in the software remain with their respective owners. Third-party components remain subject to their applicable notices and licences. Nothing here transfers ownership of the user's input data or independent results to TriboNet.

## 7. Engineering limitations

TriboSolver is a numerical engineering calculation tool, not an engineering certification, design approval or guarantee of real-world performance. Its models use assumptions, idealizations and numerical approximations. Results depend on the selected models, input data, units, boundary conditions, discretization, convergence settings and the suitability of the model for the intended application.

The licensee and the engineers responsible for the application are responsible for selecting suitable models, checking inputs and units, assessing convergence and sensitivity, independently validating outputs against appropriate analytical, experimental or other evidence, and determining whether results are fit for their intended purpose. They remain responsible for design decisions, safety assessments, regulatory compliance, manufacturing, operation and all other end-use decisions. Results must not be treated as a substitute for competent engineering judgment or necessary physical testing.

TriboNet does not undertake the user's engineering duties or approve the user's end-use application merely by supplying the software, documentation, examples or general assistance. No particular accuracy, convergence, fitness for a specific application, engineering outcome or commercial result is guaranteed. Agreement with reference values in selected verification cases does not establish accuracy or suitability for other cases.

## 8. Disclaimer of warranties and limitation of liability

To the fullest extent permitted by applicable law, the software is provided "as is" and "as available", without express or implied warranties, including warranties of merchantability, fitness for a particular purpose, uninterrupted or error-free operation, or accuracy or completeness of numerical results. No guarantee is given that using the software will achieve the licensee's intended design, safety, performance or financial objectives.

To the fullest extent permitted by applicable law, TriboNet is not liable for the licensee's selection of an unsuitable model, incorrect or incomplete inputs, failure to validate results, or engineering and end-use decisions made in reliance on the outputs. TriboNet excludes liability for indirect, consequential, incidental or special losses, including lost profits, lost opportunities, business interruption and loss of data, to the extent those exclusions are lawful.

For business licensees, and to the fullest extent permitted by applicable law, TriboNet's aggregate liability arising from the software or this agreement is limited to the licence fees paid for the affected licence during its current licence period.

Nothing in this section excludes liability or statutory rights that cannot lawfully be excluded or limited. These limitations do not convert the software into a guarantee of any engineering result.


## 9. Ending use

Use under a time-limited licence ends at expiry unless renewed. For a breach, any suspension or termination must respect applicable law and the accepted terms, including any required notice or remedy opportunity. 


## 10. Existing agreements and governing law

This agreement is governed by Dutch law, without excluding mandatory protections applicable to consumers. For licences expressly issued under this agreement, it supersedes the older EULA bundled with the software where they conflict. Existing individually agreed terms remain unchanged unless expressly amended in writing.
