HUDU Limited 

End User Licence Agreement 

Version 0.2  |  Effective from the date you first access the Platform  |  March 2026 

BETA PLATFORM — This agreement governs your access to HUDU.vu during its Beta testing phase. The Platform is experimental and under active development. It is not a production-ready service and must not be relied upon as a substitute for qualified professional judgement. Features, terms, and technical arrangements may change during the Beta phase with reasonable notice. 

Legal Framework — Three Separate Instruments 

Your use of the Platform is governed by three separate legal documents, each of which requires independent acceptance: 

  • This End User Licence Agreement ("EULA"), which governs your licence to use the Platform, your permitted and prohibited conduct, usage allowances, payment terms, liability, and intellectual property. 

  • The Privacy Policy ("Privacy Policy"), which explains how HUDU Limited collects, uses, stores, and shares your personal data as data controller in connection with your account and use of the Platform. 

  • The Data Processing Agreement ("DPA"), which governs the processing of personal data relating to third parties that may be contained in documents you upload to the Platform, and under which HUDU Limited acts as data processor on your behalf as data controller. 

Each document must be accepted independently during registration or first login. Acceptance of this EULA does not constitute acceptance of the Privacy Policy or the DPA. Acceptance of any one document does not constitute acceptance of either of the others. All three documents are published in full at www.hudu.vu . 

In the event of conflict between these documents: the DPA takes precedence on all matters relating to the processing of third-party personal data contained in uploaded documents; the Privacy Policy takes precedence on all matters relating to the processing of your own personal data; and this EULA governs on all other matters. 

IMPORTANT: Please read all three documents carefully before using HUDU.vu. By creating an account or accessing the Platform, you confirm that you have read and accepted each document independently. If you do not agree to any of them, do not use the Platform. 

1. Who We Are 

HUDU.vu, HUDU Insight, and HUDU Lab are products of HUDU Limited, a company registered in England and Wales (Company No. 15583356). We provide an AI-powered decision-support platform for construction and engineering professionals (“the Platform”). 

We are not an engineering services provider. Nothing the Platform produces constitutes engineering advice. All engineering decisions remain the responsibility of qualified professionals. 

2. Licence Types 

When you register for HUDU.vu during the Beta phase, you will be assigned one of the following licence types. The features and usage allowances available to you depend on which licence you hold. Full details are set out in the Feature Schedule and Usage Policy at www.hudu.vu , which may be updated from time to time. 

 

2.1 Free Trial 

All new users receive a free one-month trial (“the Trial Period”), regardless of whether they sign up with a personal or work email address. The Trial Period begins on your registration date and ends one calendar month later. At the end of the Trial Period your access will be suspended unless you subscribe to a paid licence. Suspension means you will be fully locked out of the Platform and unable to access any content, documents, or outputs. Your data will be retained for 30 days to allow you to subscribe and resume access, after which it will be permanently deleted in accordance with clause 6. 

 

Work email trial: Registering with a verified work email address gives you access to organisation visibility features — you can see which colleagues in your organisation are using HUDU.vu and what projects they are working on. You may also request to join existing Project Licences (subject to approval by the Project Licence holder) and initiate new projects (subject to payment of the applicable Project Licence fee). 

Personal email trial: Registering with a personal email address gives you access to core Platform features only. Organisation visibility, project joining, and project initiation are not available. 

2.2 Personal Email Paid Licence 

A monthly subscription giving continued access to core Platform features within the usage allowances set out in the Usage Policy. Organisation visibility and project features are not included. This licence is for your individual use only and may not be shared or transferred. 

2.3 Work Email Paid Licence 

A monthly subscription giving continued access to core Platform features and organisation visibility within the usage allowances set out in the Usage Policy. You may request to join existing Project Licences (subject to approval by the Project Licence holder) and initiate new projects (subject to the applicable Project Licence fee). This licence is for your individual use only, is non-transferable, and requires a work email address. 

2.4 Project Licence 

A project-specific subscription billed monthly, priced by project value band as set out at www.hudu.vu. 

Minimum term: The Project Licence has a minimum initial term of 12 consecutive months. You may not cancel during this period, and monthly fees remain due regardless of usage. However, if HUDU Limited discontinues the Platform or materially degrades its core functionality during the minimum term, you may terminate the Project Licence on 30 days’ written notice and receive a pro-rata refund of prepaid fees for the unused portion of the then-current minimum term. 

After the minimum term: The licence continues on a rolling monthly basis and may be cancelled at any time with effect from the end of the then-current billing period. 

A Project Licence gives the purchasing organisation access to the full Platform feature set for that project, including project administration, user management, organisation settings, and Guest invitations. Usage allowances are shared across the project team. Allowances are not allocated per user — the full monthly allowance is available to the team as a whole, and any team member or Guest may draw from it. If the shared allowance is reached, access to that feature will be suspended for all team members until the allowance resets or a top-up is purchased. The Project Licence holder will be notified when the project approaches or reaches its monthly allowance and may purchase top-ups or manage team usage accordingly. 

2.5 Guest Access 

Project Licence holders may invite external collaborators as Guests. Guests must hold a verified work email address and accept this EULA before accessing the project. Guest access is funded by the Project Licence, draws from the project’s usage allowances, and does not include project administration rights. 

2.6 Add-Ons 

Additional usage capacity and optional features (such as HUDU Lab access) are available as paid add-ons. Details and pricing are at www.hudu.vu . 

3. What You Can and Cannot Do 

3.1 Permitted use 

  • Upload and review documents within your licence allowances. 

  • Use AI-generated insights and outputs to support — not replace — your own professional judgement. 

  • Own and use AI-generated outputs for any lawful professional purpose (see clause 10). 

  • Invite colleagues or guests to a project if your licence permits this. 

3.2 Prohibited use 

  • Share your login credentials or allow any other person to use your account. 

  • Upload documents you do not have authority to share (see clause 5). 

  • Use the Platform for any unlawful purpose. 

  • Reverse-engineer, copy, scrape, or resell any part of the Platform or its outputs in a systematic or automated manner. 

  • Attempt to circumvent any usage limits or access controls. 

  • Misrepresent your email address type to access a higher licence tier than you are entitled to. 

4. Usage Allowances, Fair Use, and Top-Ups 

Each licence type is subject to monthly usage allowances covering document reviews, document size, Know How queries, and storage. These are set out in our Usage Policy at www.hudu.vu . We may update allowances from time to time; where we reduce them materially for existing paid subscribers we will give at least 30 days’ notice. Unused allowances do not carry over between months. Project Licence allowances are shared across the project team including Guests. 

When you reach your monthly limit: We do not want usage limits to interrupt your work. If you reach your monthly allowance for document reviews or Know How queries at any point — on any licence type including free trial — you will be offered the option to purchase a top-up immediately and continue without interruption. Top-up pricing and increments are at www.hudu.vu . Top-ups are non-refundable and any unused allowance expires at the end of the monthly period in which it was purchased. 

We reserve the right to suspend or terminate accounts we reasonably believe are being used inconsistently with these terms or in a way that places an unreasonable burden on our systems. 

5. Your Documents — Permissions and Responsibility 

By uploading a document, you confirm that: 

  • you have full authority and permission to share that document with a third-party AI-powered service; and 

  • uploading it does not breach any confidentiality obligation, intellectual property right, data protection obligation, or applicable law. 

You accept sole responsibility for all content you upload. HUDU Limited accepts no responsibility for documents uploaded without proper authority. If you are uncertain whether you have permission to upload a document, do not upload it. 

6. How the Platform Uses AI and Processes Your Data 

HUDU.vu uses AI at several points in its operation. This clause explains what happens to your content and data at each stage. Full details of how we handle personal data are in our Privacy Policy at www.hudu.vu . You acknowledge that you have read and understood the Privacy Policy before using the Platform. 

6.1 AI processing activities 

When you use the Platform, your uploaded documents and interactions may be processed by AI in the following ways: 

  • Document OCR and conversion: Uploaded documents are processed to extract readable text. Where documents are scanned or image-based, AI-assisted optical character recognition (OCR) is used to convert them to text. 

  • Chunk embeddings: Extracted text is divided into fragments (“chunks”) and converted into vector embeddings — mathematical representations stored on our servers that allow the Platform to retrieve relevant content in response to your queries. 

  • Summary provision: AI generates summaries of uploaded documents to support your review workflow. 

  • Insight provision: AI analyses document content to identify issues, risks, comments, and queries relevant to your engineering or construction context. These are the primary outputs of HUDU Insight. 

  • Continuation chats: You may continue a conversation about a document or review within the Platform. These interactions are processed by AI in the context of your uploaded content. 

  • Project chat: Within a Project Licence, team members may interact via project-level chat. These interactions are processed by AI and are accessible to the project administrator. 

  • Know How processing: Content you add to your Know How workspace is processed by AI to generate embeddings and enable intelligent retrieval and responses. Know How content may also inform agent-based analysis where you have configured this. 

  • Connecting People: Where you hold a Work Email licence, HUDU.vu analyses the vector embeddings generated from documents you upload to detect whether users within the same organisational domain appear to be working on the same project — for example, by identifying common project names or references across documents. Where such a connection is identified, affected users may be notified and suggested that a Project Licence could enable more effective collaboration. This analysis uses embeddings only — no document content is shared between users. The detection is probabilistic and you are not obligated to act on any suggestion made. The legal basis for this processing is our legitimate interests in facilitating collaboration and offering relevant services to users on the same domain. 

6.2 AI providers and data location 

To deliver the AI processing activities described above, relevant text fragments from your documents and interactions are transmitted to AI model providers. We do not transmit full copies of your original documents externally. 

We aim to use AI providers whose infrastructure is based in the UK, EU, or EEA, and to store your data on UK or EU/EEA-based servers. During the Beta phase, the specific providers and infrastructure we use may evolve. We will always work to ensure that any provider we engage operates under appropriate data processing agreements and with appropriate regard to data protection law. 

We do not make specific binding commitments about data residency during the Beta phase. We will be transparent in our Privacy Policy about the providers we use and where data is processed. If data location matters to your use of the Platform, please review our Privacy Policy at www.hudu.vu  before uploading sensitive content. 

6.3 Default and user-configured AI providers 

Default provider: Our current default AI provider for Know How responses and AI-assisted analysis is Mistral AI, a European AI provider. We have chosen Mistral with data location in mind. However, we may also use specific alternative providers for specific actions (see Clause 6.1) on the platform and we reserve the right to change the default provider at any time and will notify you when we do so. 

User-configured providers (advanced): Users creating their own Know How agents may be able to configure an alternative AI provider. If you do so, you take full responsibility for that choice. HUDU Limited makes no warranty about any alternative provider’s performance, data handling, or compliance, and accepts no liability for any consequence of that choice. 

6.4 What we do not do 

  • We do not store copies of your original documents beyond what is needed for processing. 

  • We do not use your uploaded documents or derived embeddings to train any AI or machine learning model. 

  • We do not share your documents or interaction data with any AI provider for training or model development purposes. 

  • We may review chat interactions to improve our own agents and prompt frameworks. We do this on the basis of our legitimate interests in developing and improving the Platform. You have the right to object to this processing at any time by contacting privacy@hudu.uk, and we will stop unless we have compelling legitimate grounds to continue. Objecting will not affect your access to the Platform. 

6.5 Data retention and deletion 

  • Embeddings will be permanently deleted within 30 days of your written request. Where erasure is technically complex, this period may be extended to a maximum of 90 days; we will notify you of any extension within 30 days of your request. Separately, embeddings will be permanently deleted within 100 days of 3 consecutive months of account inactivity. 

  • You may request deletion at any time: privacy@hudu.uk 

7. End of Trial and Subscription Terms 

At the end of your Trial Period, your access will be suspended, and you will be invited to subscribe to the appropriate paid licence. If you do not subscribe within 30 days of trial expiry, your account and associated data will be permanently deleted in accordance with clause 6. 

Individual licences: Billed monthly (in advance). May be cancelled at any time with effect from the end of the current billing period. No refunds for partial periods except where required by law. 

Project Licences: Subject to a 12-month minimum term. Monthly fees are due throughout and the licence cannot be cancelled during this period, subject to the discontinuation carve-out in clause 2.4. After the minimum term, the licence continues monthly and may be cancelled at any time. We will send a reminder at least 30 days before the end of the minimum term. No refunds for any period already paid except where required by law. 

Advance payment: All licence fees are payable in advance. Your licence period begins on the date payment is successfully processed. For monthly licences, each subsequent month's fees are payable in advance on the same date each month. For Project Licences, monthly instalments are payable in advance on the same date each month throughout the minimum term and any subsequent rolling period. 

Payment failure and late payment: If a payment fails, we will notify you by email and retry the payment after 3 days. If the second attempt also fails, we will notify you again and suspend your access to the Platform after a further 7 days. During suspension your data is retained and access will be restored immediately on successful payment. If payment remains outstanding for 30 days following the original failure, we may terminate your licence and delete your account and associated data in accordance with clause 6. 

For Project Licences, the above suspension and termination rights apply without affecting the minimum term obligation. Monthly fees remain due throughout the minimum term regardless of suspension, and any outstanding balance will remain recoverable. 

Interest on overdue payments shall accrue at the rate of 8% per annum above the Bank of England base rate, pursuant to the Late Payment of Commercial Debts (Interest) Act 1998, from the date payment was due until the date of actual payment, whether before or after judgment. We reserve the right to claim reasonable debt recovery costs in accordance with that Act. 

Nothing in this clause affects any other right or remedy available to HUDU Limited in respect of unpaid fees. 

 

8. Platform Availability 

HUDU.vu is in active Beta development. The Platform may be subject to interruptions, downtime, feature changes, or periods of unavailability. This is a normal part of Beta operation. 

No uptime guarantee during Beta: We do not guarantee any specific level of availability and make no commitment to a minimum uptime percentage or formal service level. A production service level will be defined when the Platform moves to general availability. 

Maintenance and outages: We will communicate planned maintenance where reasonably practicable, but reserve the right to carry out maintenance at any time without advance notice during the Beta phase. In the event of an unplanned outage we will aim to restore service promptly and communicate status updates where reasonable. 

No liability for downtime: HUDU Limited accepts no liability for any loss, damage, or inconvenience arising from Platform unavailability or interruption, whether planned or unplanned. See also clause 9. 

9. Limitation of Liability 

To the fullest extent permitted by English law: 

  • The Platform is provided on an “as is” basis. As a Beta service it may contain errors, incomplete features, or unexpected behaviour. No warranties are given beyond those expressly stated here. 

  • HUDU Limited accepts no liability for: (a) any output or insight generated by the Platform; (b) any engineering or commercial decision made in reliance on Platform outputs; (c) any document uploaded by you or any third party; (d) Platform unavailability or downtime as described in clause 8; or (e) any consequence of using a user-configured AI provider. 

  • HUDU Limited shall not be liable for any indirect, special, incidental, or consequential loss or damage of any kind, including (without limitation) loss of profits, loss of revenue, loss of business, loss of anticipated savings, loss of data, loss of goodwill, or any other economic loss, whether arising in contract, tort (including negligence), breach of statutory duty, or otherwise. 

  • HUDU Limited’s total aggregate liability to you shall not exceed the total fees paid by you in the 12 months preceding the claim, or £100 for free trial users, whichever is greater. 

  • Nothing here excludes or limits liability for death or personal injury caused by negligence, fraud, or any other liability that cannot be excluded by law. 

10. Intellectual Property 

10.1 HUDU Platform 

The Platform, including all underlying AI models, agents, prompt frameworks, architecture, embeddings infrastructure, and associated technology, is and remains the intellectual property of HUDU Limited. You receive a licence to use the Platform as set out in this agreement and do not acquire any ownership of it or its underlying components. 

10.2 Your Documents 

Your uploaded documents remain your property (or that of the party who authorised you to upload them). HUDU Limited claims no ownership over content you upload. 

10.3 AI-Generated Outputs 

As between you and HUDU Limited, you own the outputs generated by the Platform in response to your inputs, including document review reports, AI-generated insights, summaries, and comments. To the extent protectable rights exist in such outputs under applicable law: (a) in the case of paid licence holders, HUDU Limited hereby assigns all such rights to you; and (b) in the case of free trial users, HUDU Limited hereby grants you an irrevocable, royalty-free, perpetual licence to use such outputs for any lawful purpose. You acknowledge that the copyright status of AI-generated works is subject to evolving UK law (including proposed amendments to the Copyright, Designs and Patents Act 1988) and that the rights above apply only to the extent that protectable rights exist at the relevant time. 

Owning an output does not mean it is accurate, complete, or fit for any professional purpose. You are responsible for independently verifying all Platform outputs and ensuring compliance with your professional and legal obligations. You remain solely responsible for any decisions made or actions taken in reliance on Platform outputs. 

11. Governing Law 

This agreement is governed by the laws of England and Wales. Any disputes are subject to the exclusive jurisdiction of the courts of England and Wales. 

12. Changes to These Terms 

We may update these terms from time to time and will notify you by email or via the Platform. For material changes affecting paid subscribers we will give at least 30 days’ notice. Continued use after notification constitutes acceptance of the updated terms. 

 

13. Dispute Resolution 

If a dispute arises out of or in connection with this agreement, or its formation, validity, or termination, the parties agree to attempt to resolve it in good faith before commencing any legal proceedings. 

Step 1 — Informal resolution: The party raising the dispute shall notify the other in writing, setting out the nature of the dispute and the outcome sought. The parties shall then attempt to resolve the dispute by good faith negotiation for a period of 14 days from the date of that notice (or such longer period as the parties may agree in writing). 

Step 2 — Mediation: If the dispute is not resolved under Step 1, either party may refer it to mediation administered by the Centre for Effective Dispute Resolution (CEDR) or, if the parties agree, another accredited mediator. The mediator shall be appointed by agreement between the parties, or failing agreement within 7 days of a written request to do so, by CEDR on the application of either party. The costs of the mediator shall be shared equally between the parties unless the mediator directs otherwise. The mediation shall be conducted in England and both parties shall participate in good faith. The mediation shall be concluded within 30 days of the appointment of the mediator, unless the parties agree in writing to extend this period. 

Step 3 — Legal proceedings: If the dispute is not resolved by mediation within the period set out in Step 2, either party may commence legal proceedings in accordance with clause 11 (Governing Law). 

Urgent relief: Nothing in this clause prevents either party from seeking urgent injunctive or other interim relief from a court of competent jurisdiction where necessary to protect its rights pending resolution of the dispute. 

Confidentiality: All negotiations and mediation conducted under this clause are confidential and without prejudice to the rights of the parties in any subsequent legal proceedings. 

 

14. Eligibility and Authority 

By accepting this agreement, you confirm that: (a) you are at least 18 years of age; (b) you are acting in a professional or business capacity and not as a consumer; and (c) where you are accepting this agreement on behalf of an organisation, you have authority to bind that organisation to these terms. If you do not meet these requirements, you must not use the Platform. 

 

15. Beta Termination Right 

HUDU Limited may discontinue the Beta programme or terminate any user’s access at any time for any reason, on not less than 7 days’ written notice to the affected user (or immediately where HUDU determines that immediate action is necessary to protect the security or integrity of the Platform or the rights of other users). On termination of the Beta, HUDU will provide users with a reasonable opportunity to export their data before deletion in accordance with clause 6. This right is in addition to the suspension and termination rights in clause 4. 

 

16. User Indemnity 

You agree to indemnify, defend, and hold harmless HUDU Limited and its officers, directors, employees, and agents from and against any and all claims, damages, losses, costs, and expenses (including reasonable legal fees) arising out of or in connection with: (a) any document or content you upload to the Platform; (b) your breach of clause 5 (permissions and authority); (c) any infringement of third-party intellectual property rights or confidentiality obligations caused by your use of the Platform; or (d) any claim by a third party that content you have submitted to the Platform has caused them loss or damage. 

 

17. Third Party Rights 

No person who is not a party to this agreement shall have any right to enforce any of its terms under the Contracts (Rights of Third Parties) Act 1999. This clause does not affect any right or remedy that exists or is available independently of that Act. 

 

18. Severability 

If any provision of this agreement is found to be invalid, unenforceable, or illegal by any court of competent jurisdiction, that provision shall be deemed deleted. The remaining provisions shall continue in full force and effect. Where possible, the invalid provision shall be modified to the minimum extent necessary to make it valid and enforceable, giving effect to the parties’ original commercial intentions. 

 

19. Entire Agreement 

This agreement, together with the Feature Schedule and Usage Policy published at www.hudu.vu , constitutes the entire agreement between the parties relating to its subject matter and supersedes all prior agreements, representations, and understandings. Each party acknowledges that it has not relied on any representation, warranty, or other statement not expressly set out in this agreement. Nothing in this clause limits liability for fraudulent misrepresentation. 

 

20. Waiver 

No failure or delay by HUDU Limited in exercising any right, power, or remedy under this agreement shall constitute a waiver of that right, power, or remedy. No single or partial exercise of any right shall preclude any other or further exercise, or the exercise of any other right. A waiver is only effective if given in writing signed by HUDU Limited. 

 

21. Assignment 

You may not assign, transfer, charge, subcontract, or otherwise deal with any of your rights or obligations under this agreement without the prior written consent of HUDU Limited. HUDU Limited may freely assign or transfer this agreement, in whole or in part, to any group company, successor in title, or acquirer of all or substantially all of the business of HUDU Limited, without your consent. HUDU will notify you of any such assignment. 

 

22. Force Majeure 

HUDU Limited shall not be liable for any failure or delay in performing its obligations under this agreement to the extent caused by circumstances beyond its reasonable control, including (without limitation) acts of God, pandemic, epidemic, fire, flood, storm, war, terrorism, civil unrest, government action, industrial action by third parties, failure of third-party infrastructure or networks, or denial of service attacks. If a force majeure event continues for more than 30 consecutive days, either party may terminate this agreement on written notice, without liability (except that any prepaid fees for services not yet delivered will be refunded pro-rata). 

 

23. Data Processing Agreement 

When you use the Platform, you may upload documents containing personal data relating to third parties (such as project team members, client contacts, subcontractor personnel, or other individuals referenced in construction and engineering documentation). This applies to all licence types, including Free Trial users. 

Where you upload such documents, HUDU Limited acts as a data processor on your behalf in respect of that third-party personal data, and you act as the data controller. The terms governing that processing relationship are set out in HUDU's Data Processing Agreement, published at www.hudu.vu. 

The DPA is a separate agreement from this EULA. You will be asked to read and accept it as a distinct step during registration or first login, before you are permitted to access the Platform. Acceptance of this EULA does not constitute acceptance of the DPA, and acceptance of the DPA does not constitute acceptance of this EULA. Each must be accepted independently. You should not upload any document containing personal data until you have accepted the DPA. 

Your acceptance of the DPA is recorded separately, together with a timestamp, your email address, and the version accepted. A countersigned copy is available on request from privacy@hudu.uk for organisational users who require one for procurement or compliance purposes. 

 

24. Contact Us 

HUDU Limited (Company No. 15583356) 

Email: hello@hudu.uk  |  Privacy: privacy@hudu.uk  |  Website: www.hudu.vu  

Legal and Compliance: www.hudu.vu 

 

 

By accessing the Platform you confirm that you have read, understood, and agreed to this End User Licence Agreement in full.