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1. Introduction

Leyden (the "Service") is operated by Vantara Labs Ltd, a company registered in England & Wales under company number 17133349, whose registered office is at Gibson House, Hurricane Court, Hurricane Close, Stafford, ST16 1GZ, United Kingdom ("we", "us", or "our").

By accessing or using the Service at leyden.app, the web application at jar.leyden.app, or our mobile application, you agree to be bound by these Terms of Service (the "Terms") and our Privacy Policy, which is incorporated into these Terms by reference. If you do not agree with any part of these Terms, you must not access or use the Service.

Status note. Leyden is currently in pre-launch / private access. The Service is provided free of charge today. We may introduce paid plans in the future; if we do, we will give you advance notice and you will not be charged for any feature without expressly agreeing to a paid plan.

2. Definitions

  • Service: The Leyden marketing site, web application, mobile application, and all content, services, and products made available by us
  • User, You: The individual accessing or using the Service
  • Account: A unique account created for you to access the Service
  • User Content: Content you create, upload, or capture through the Service, including voice recordings, transcripts, typed ideas, notes, tags, and any AI-generated metadata derived from your input on your behalf
  • AI Output: Text, suggestions, titles, tags, summaries, embeddings, or other material produced by AI models in response to your input

3. Eligibility and Account Registration

You must be at least 16 years old to use the Service, in line with the UK GDPR / EU GDPR age of digital consent. By creating an account you confirm that you meet this age requirement.

To use the Service you must register for an account. You agree to provide accurate, current, and complete information during registration, and to keep that information up to date. You are responsible for safeguarding your password and for all activity under your account. You must notify us without undue delay at [email protected] if you suspect unauthorised access to your account.

We reserve the right to refuse registration, suspend, or terminate accounts where the above requirements are not met.

4. Your Content

4.1. Ownership

You retain all rights in your User Content. Your ideas, your voice, your words remain yours. We claim no ownership over anything you capture or create through the Service.

4.2. Licence to Operate the Service

You grant us a worldwide, non-exclusive, royalty-free licence to host, store, transmit, transcribe, index, and display your User Content solely for the purpose of operating, securing, backing up, and improving the Service for you. This licence ends when you delete the User Content or terminate your account, except where retention is required for legal reasons set out in our Privacy Policy.

4.3. AI Processing of Your Content

To deliver the Service we send your voice recordings to OpenAI for transcription, and your transcribed text to Google AI for title generation, tagging, summarisation, and embedding. These providers process your content under their paid-API terms, which contractually prohibit using your content to train their general-purpose models. See §4 of our Privacy Policy for full processor details.

We do not use your User Content to train any AI model. If we ever introduce an opt-in feature that does, we will update these Terms and the Privacy Policy and obtain your express consent before any such use begins.

4.4. AI Output is Not Always Correct

AI Output is generated automatically and may be inaccurate, incomplete, or misleading. Two recordings of the same idea can produce different transcripts; suggested tags or "smart links" may be wrong; auto-titles may not match what you actually meant. You should not rely on AI Output as a substitute for your own judgement, and you should review AI Output before treating it as a record of your own thoughts or before sharing it with anyone else.

We are not liable for any decision you make based on AI Output, and §10 (Limitation of Liability) applies to any loss arising from AI Output to the fullest extent permitted by law.

4.5. Responsibility for Your Content

You are solely responsible for your User Content and warrant that:

  • You have the right to capture and process the content you provide (for example, do not record other people without their knowledge or consent where the law requires it).
  • Your content does not infringe any third-party intellectual property, privacy, or confidentiality rights.
  • Your content does not contain unlawful, defamatory, abusive, obscene, or otherwise objectionable material.
  • You will not upload other people's confidential or sensitive personal data through the Service without a proper legal basis.

5. Acceptable Use

You agree not to:

  • Use the Service in any manner that could damage, disable, overburden, or impair the Service
  • Use any robot, spider, or automated device to access the Service for commercial scraping, spam, or malicious purposes
  • Attempt to gain unauthorised access to any portion of the Service, to any other user's account, or to any computer system or network connected to the Service
  • Reverse engineer, decompile, or attempt to extract the source code of the Service, except to the extent such restriction is expressly prohibited by applicable law
  • Use the Service to violate any local, national, or international law, or to transmit any content that is unlawful, abusive, defamatory, obscene, or otherwise objectionable
  • Probe, attack, or attempt to defeat any rate limit, security control, or content moderation system in the Service
  • Resell, sublicense, or commercially exploit the Service without our prior written consent

6. Service Availability and Changes

The Service is provided on an evolving basis. We may add, change, or remove features at any time, and we may impose reasonable usage limits (for example, on the length or number of recordings) to keep the Service stable for everyone.

We aim to keep the Service available, but we do not guarantee uninterrupted access. The Service may be unavailable from time to time for maintenance, upgrades, or due to causes outside our reasonable control (see §11.5 (Force Majeure)).

7. Future Paid Features

The Service is currently free. If we introduce paid features in the future:

  • We will give you notice before any paid feature is launched.
  • You will not be charged for any paid feature without your express opt-in.
  • Specific billing terms (cancellation, refunds, statutory cooling-off rights, price changes) will be set out in an updated version of these Terms before any paid feature is offered.

8. Intellectual Property

The Service and its original content (excluding User Content), features, and functionality are and will remain the exclusive property of Vantara Labs Ltd and its licensors. The Service is protected by copyright, trademark, and other laws of the United Kingdom and other jurisdictions. Nothing in these Terms grants you any right, title, or interest in our trademarks, service marks, or logos.

9. Disclaimer of Warranties

Except as expressly set out in these Terms and to the fullest extent permitted by law, the Service is provided on an "as is" and "as available" basis. We make no representations or warranties of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, accuracy, reliability, or non-infringement.

In particular, and without limitation, we make no warranty that:

  • The Service will meet your specific requirements
  • The Service will be uninterrupted, timely, secure, or error-free
  • AI Output will be accurate, complete, or fit for any particular purpose

Consumer rights carve-out. Nothing in these Terms excludes or limits:

(a) our liability for death or personal injury caused by our negligence; (b) our liability for fraud or fraudulent misrepresentation; (c) any statutory rights you have as a consumer under the Consumer Rights Act 2015 (including rights relating to digital content that is of satisfactory quality, fit for purpose, and as described); (d) any liability that cannot be excluded or limited under applicable law.

If you are a consumer, these Terms do not affect your statutory rights, and the exclusions above apply only to the extent permitted by law.

10. Limitation of Liability

Subject to §9 (Consumer rights carve-out), and to the fullest extent permitted by law:

  • We shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including without limitation loss of profits, revenue, data, use, ideas, goodwill, or other intangible losses, arising from or relating to your access to or use of, or inability to access or use, the Service or any AI Output.
  • Our total aggregate liability arising out of or relating to these Terms or the Service, whether in contract, tort (including negligence), breach of statutory duty, or otherwise, shall not exceed the greater of (a) the total amount you paid us in the 12 months immediately preceding the event giving rise to the liability, or (b) £100.

11. Termination

Termination by you. You may terminate your account at any time from your account settings, or by emailing [email protected]. Account deletion is processed in accordance with our Privacy Policy.

Termination by us. We may suspend or terminate your account and bar access to the Service immediately, with or without notice, if you materially breach these Terms, engage in any activity prohibited under §5, or where required by law. For non-material issues we will, where reasonable, give you notice and an opportunity to cure.

On termination, your right to use the Service ceases immediately. Provisions of these Terms that by their nature should survive termination (including §4 (Your Content), §8 (Intellectual Property), §9 (Disclaimer), §10 (Limitation of Liability), §11 (this section), §12 (General), §13 (Governing Law), and §14 (Contact Us)) will survive.

12. Changes to Terms

We may modify these Terms from time to time. For material changes we will give you at least 30 days' notice by email or in-app notification before the changes take effect. Continued use of the Service after the effective date of any changes constitutes acceptance of the revised Terms. If you do not agree to the revised Terms, you must stop using the Service and may delete your account.

13. General

  • Severability. If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions will remain in full force and effect.
  • No Waiver. Our failure to enforce any right or provision of these Terms is not a waiver of that right or provision.
  • Entire Agreement. These Terms, together with the Privacy Policy and any terms presented in-app for a specific feature, constitute the entire agreement between you and us regarding the Service and supersede any prior agreements.
  • Assignment. You may not assign or transfer these Terms without our prior written consent. We may assign these Terms in connection with a merger, acquisition, or sale of all or substantially all of our assets, provided your rights are not materially diminished.
  • Force Majeure. We are not liable for any failure or delay in performance caused by events beyond our reasonable control, including acts of God, acts of war or terrorism, civil unrest, government action, natural disasters, power or network outages, or third-party service failures.
  • No Agency. Nothing in these Terms creates any partnership, agency, joint venture, or employment relationship between you and us.

14. Governing Law and Jurisdiction

These Terms, and any dispute or claim arising out of or in connection with them or their subject matter (including non-contractual disputes or claims), are governed by and construed in accordance with the laws of England and Wales.

You and we agree that the courts of England and Wales will have exclusive jurisdiction to settle any such dispute or claim, except that if you are a consumer resident outside England and Wales, you may also bring proceedings in the courts of the country of your residence, and nothing in these Terms affects any mandatory rights you have under the law of your country of residence.

15. Contact Us

If you have any questions about these Terms, please contact us:

  • By email (general): [email protected]
  • By email (privacy): [email protected]
  • By post: Vantara Labs Ltd, Gibson House, Hurricane Court, Hurricane Close, Stafford, ST16 1GZ, United Kingdom