Terms of Service

Last Updated: October 6, 2026

1. General Information

VivaLeX (“The Service”) is provided by Kevin Mark Lock, located at 2620 Albertslund, Denmark (“The Provider”). The Service is operated as a private hobby activity (Hobbyvirksomhed) under Danish law.

By creating an account, accessing, or using the Service, you agree to be bound by these Terms. If you do not agree, you must stop using the Service immediately.

2. Service Description & AI Disclaimer

VivaLeX utilizes artificial intelligence (AI) to analyze documents and generate audio.

  • AI Transparency: Some features use AI: OpenAI GPT-6 Luna analyzes page images and OCR text, while Kokoro generates speech. AI outputs can be inaccurate, especially for formulas and technical text; check critical content against the original PDF.
  • Beta Status: Features labeled as “Beta” or “Experimental” (e.g., Semantic Math, Code Awareness) are in active development. The Provider does not guarantee their accuracy or stability.
  • No Professional Advice: The Service is a productivity tool, not a substitute for professional, medical, or legal advice. You should verify critical calculations or data against the original source document.

3. Subscriptions, Payments & Refunds

  • Merchant of Record: Payment processing, billing, and tax compliance are handled by our Merchant of Record, Lemon Squeezy. By making a purchase, you agree to Lemon Squeezy’s Terms of Service in addition to these Terms.
  • Consumer Rights: Any statutory rights concerning subscriptions, withdrawal, and refunds apply as required by applicable law. Nothing in these Terms is intended to waive rights that cannot legally be waived.
  • Price Changes: The Provider reserves the right to adjust pricing for future billing cycles with at least 30 days’ notice via email. If you do not agree to the change, you may cancel your subscription before the new price takes effect.

4. Acceptable Use & Restrictions

To protect the Service and our infrastructure, you agree not to:

  • Reverse Engineer: Decompile, disassemble, or attempt to extract the source code, system prompts, or underlying algorithms of the Service (including “Prompt Injection” attacks).
  • Automated Access: Use scripts, bots, scrapers, or other automated means to access the API or Service.
  • Account Sharing: Share login credentials. Accounts are for individual use only.
  • Limit Evasion: Evade or attempt to evade usage limits, eligibility requirements, or other restrictions that apply to an account or plan.
  • Illegal Content: Upload documents containing malware, illegal content, or sensitive personal data (e.g., CPR numbers, health records) for which the Service is not designed.

Violation of this section results in immediate termination of your account without refund.

5. Fair Use & Technical Limits

Even for plans labeled as “Pro” or high-volume, the Provider reserves the right to impose technical limits to prevent abuse and ensure stability.

  • Throttling: We may limit the speed of requests (Rate Limiting) if your usage negatively impacts other users or system stability.
  • Storage Limits: Free accounts have 50 MB of combined PDF and saved-audio storage; Pro Monthly accounts have 500 MB. Uploads are rejected when they would exceed the account’s remaining storage.

6. Intellectual Property

  • Your Data: You retain all ownership rights to the documents you upload. You grant the Provider a limited, non-exclusive license to process these documents solely for the purpose of providing the Service to you.
  • VivaLeX IP: The website, code, design, voice generation pipeline, and “VivaLeX” brand are the exclusive property of the Provider.
  • Feedback: If you provide suggestions, feature requests, or feedback, you grant the Provider a perpetual, worldwide, royalty-free license to use, modify, and incorporate such feedback into the Service without compensation.

7. Service Availability & Downtime

The Service is provided on an “as is” and “as available” basis.

  • No Uptime Guarantee: The Provider does not guarantee continuous, uninterrupted access to the Service.
  • Third-Party Dependencies: VivaLeX relies on Mathpix for OCR, OpenAI for page analysis, Modal for speech generation, Google for sign-in, Supabase for application infrastructure, Vercel for hosting, and Lemon Squeezy for payments. The Provider is not liable for interruptions caused by these providers or by the Provider’s internal budget caps or capacity constraints.
  • Data Loss: While we encrypt stored files, the Provider is not responsible for any loss of data, corrupted files, or failure to store content. You should always keep a backup of your original PDFs.

8. Limitation of Liability

To the maximum extent permitted by Danish law:

  • The Provider shall not be liable for any indirect, incidental, special, or consequential damages (including loss of data, academic failure, or loss of profits).
  • Liability Cap: The Provider’s total cumulative liability for any claim arising out of these Terms shall not exceed the total amount paid by you to the Service in the 30 days preceding the event giving rise to the claim.

9. Termination

The Provider reserves the right to suspend or terminate your access to the Service at any time, for any reason, including but not limited to a violation of these Terms or a discontinuation of the Service.

  • Effect of Termination: Upon termination, your right to use the Service will immediately cease, and your data may be deleted.

10. Force Majeure

The Provider shall not be liable for any failure to perform obligations under these Terms where such failure results from any cause beyond the Provider’s reasonable control, including but not limited to mechanical, electronic, or communications failure, third-party API shutdowns, or government regulations.

11. Governing Law & Venue

These Terms are governed by the laws of Denmark. Any dispute arising out of or in connection with these Terms shall be subject to the exclusive jurisdiction of the ordinary courts of Denmark.