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Terms of Service

Last updated: February 17, 2026

§ 1 Scope

These Terms of Service govern all agreements between Valentin Lionel Weinert, Sentra (Sole Proprietorship / Einzelunternehmen), Dr.-Rohmer-Weg 11, 65719 Hofheim am Taunus, Germany (hereinafter "Provider") and the user (hereinafter "Customer") regarding the use of the SaaS platform "Sentra".

§ 2 Subject Matter

The Provider offers the Customer a web-based Software-as-a-Service (SaaS) solution that uses AI technology to analyze customer feedback, identify patterns, and generate product specifications.

§ 3 Contract Formation

  1. Registration on the platform constitutes an offer to enter into a contract.
  2. The contract is formed upon account activation or receipt of the confirmation email.
  3. By registering, the Customer confirms they have read and accepted these Terms.

§ 4 Registration and Account

  1. Using Sentra requires registration with a valid email address.
  2. The Customer must keep login credentials confidential and not share them with third parties.
  3. The Customer is responsible for all activities under their account.

§ 5 Services and Availability

  1. The Provider strives for 99.5% annual average availability, excluding scheduled maintenance.
  2. The Provider reserves the right to expand or modify features at any time, provided core functionality is maintained.
  3. Scheduled maintenance windows will be announced in advance where reasonably possible.

§ 6 Pricing and Payment

  1. Current prices are listed on the website pricing page.
  2. Paid plans are billed monthly or annually in advance.
  3. The Provider reserves the right to adjust prices with 30 days notice.

§ 7 Usage Rights and Data

  1. The Customer retains all rights to their uploaded data.
  2. The Customer grants the Provider the right to process data for service delivery purposes.
  3. System-generated analyses, patterns, and specifications belong to the Customer.
  4. Customer data is never used to train AI models.

§ 8 AI-Generated Content

  1. AI-generated analyses, patterns, and specifications are automated assistance tools. They do not constitute professional advice.
  2. The Customer is responsible for reviewing and validating all AI-generated output before making business decisions based on it.
  3. Accuracy, completeness, and suitability for specific purposes are not guaranteed, as this is inherent to the nature of AI-generated content.

§ 9 Customer Obligations

  1. The Customer ensures they have the right to use all uploaded data.
  2. The Customer shall not use the platform for unlawful purposes.
  3. The Customer shall not use automated systems for excessive platform usage.
  4. If the Customer uploads data containing personal data of third parties (e.g., interview transcripts with names), the Customer is responsible for having the necessary legal basis for processing this data.

§ 10 Warranty and Defects

  1. The Provider warrants that the platform will perform substantially in accordance with the service description.
  2. The Customer must report defects promptly in writing (e.g., via email).
  3. The Provider will make reasonable efforts to remedy defects through bug fixes or workarounds within an appropriate time frame.
  4. If a defect cannot be remedied after reasonable repair attempts, the Customer may reduce fees proportionally or, in the case of a material defect, terminate the contract.

§ 11 Liability

  1. The Provider is fully liable for intent and gross negligence, as well as for injury to life, body, or health.
  2. For slight negligence, the Provider is only liable for breach of essential contractual obligations (Kardinalpflichten). In this case, liability is limited to the typically foreseeable, contract-typical damage, capped at the annual contract value.
  3. Liability under the German Product Liability Act (Produkthaftungsgesetz) remains unaffected.
  4. The limitations above also apply in favour of the Provider's employees, agents, and vicarious agents.

§ 12 Force Majeure

The Provider shall not be liable for any failure or delay in performance resulting from events beyond reasonable control, including but not limited to natural disasters, infrastructure failures at cloud service providers, cyberattacks, government actions, or pandemics. The Provider will make reasonable efforts to resume performance as quickly as possible.

§ 13 Term and Termination

  1. Free accounts can be deleted at any time without notice.
  2. Paid plans can be cancelled at the end of the respective billing period.
  3. The right to extraordinary termination for good cause remains unaffected.
  4. Upon termination, the Customer may export their data within 30 days. After that, all data will be deleted.

§ 14 Data Protection

Personal data is processed in accordance with our Privacy Policy. Where the Customer uploads data containing personal data of third parties, a separate Data Processing Agreement (Art. 28 GDPR) may be required. The Customer may request this at hello@sentra.so.

§ 15 Changes to Terms

The Provider reserves the right to modify these Terms with 30 days notice. The Customer will be notified of changes via email. Material changes require the Customer's consent. If the Customer does not agree to material changes, they may terminate the contract before the changes take effect.

§ 16 Final Provisions

  1. German law applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).
  2. Place of jurisdiction is Frankfurt am Main, to the extent legally permissible.
  3. If individual provisions of these Terms are invalid, the validity of the remaining provisions shall remain unaffected.