Privacy Policy

Last Updated: November 28, 2025

This Privacy Policy describes how Centence ("we," "us," or "our") collects, uses, and shares information when you use our website and services (the "Service").

By using the Service, you agree to the collection and use of information in accordance with this policy.

Information We Collect

Information You Provide

  • Account information: Name, email address, and password when you create an account.
  • Payment information: Credit card details processed securely through Stripe. We do not store your full card number.
  • Content inputs: Articles, text samples, brand voice examples, and other content you provide to train your Brand Voice Profile or generate content.
  • Website data: URLs and publicly available content from websites you connect for research purposes.

Information Collected Automatically

  • Usage data: Pages visited, features used, actions taken, timestamps, and session duration.
  • Device information: Browser type, operating system, IP address, and device identifiers.
  • Cookies: We use cookies and similar technologies to maintain sessions and understand usage patterns. See "Cookies" below.

How We Use Your Information

We use the information we collect to:

  • Provide, maintain, and improve the Service
  • Process transactions and send related information (confirmations, invoices)
  • Generate content based on your inputs and preferences
  • Train your personalized Brand Voice Profile (using only your content, for your account only)
  • Send administrative messages, updates, and security alerts
  • Respond to support requests
  • Analyze usage to improve user experience
  • Detect and prevent fraud or abuse

We do not use your content to train our general AI models. Your articles, brand voice samples, and generated content are used solely to provide the Service to you.

Third-Party AI Providers

To generate content, we send your inputs to third-party AI providers through OpenRouter, a routing service. Depending on your model selection, your data may be processed by:

  • OpenAI
  • Anthropic
  • Google
  • Moonshot (Kimi)

What gets sent: Only the specific content you input (prompts, article briefs, brand voice samples) and publicly available information from websites you connect. We do not send your account information or payment details to these providers.

These providers process your data according to their own privacy policies. We recommend reviewing their policies if you have concerns about specific providers.

How We Share Your Information

We do not sell your personal information. We share information only in the following circumstances:

  • Service providers: With vendors who help us operate the Service (hosting, payment processing, analytics), bound by confidentiality obligations.
  • OpenRouter and AI providers: As described above, to generate content.
  • Legal requirements: If required by law, legal process, or government request.
  • Business transfers: In connection with a merger, acquisition, or sale of assets, with notice to you.
  • With your consent: When you direct us to share information with third parties.

Key Service Providers

  • Supabase: Database and hosting (AWS US-West region)
  • Stripe: Payment processing
  • OpenRouter: AI model routing

Data Security

We implement reasonable technical and organizational measures to protect your information, including encryption in transit (TLS) and at rest, access controls, and secure infrastructure through reputable cloud providers.

However, no method of transmission or storage is completely secure. We cannot guarantee absolute security.

Your Rights

Depending on your location, you may have the right to:

  • Access: Request a copy of the personal information we hold about you.
  • Correction: Request that we correct inaccurate information.
  • Deletion: Request that we delete your personal information.
  • Export: Request a portable copy of your data.
  • Objection: Object to certain processing of your information.

To exercise these rights, contact us using the information below. We will respond within a reasonable timeframe and in accordance with applicable law.

For Users in the European Economic Area (EEA)

We process your data based on: (a) your consent, (b) the necessity to perform our contract with you, (c) our legitimate business interests, or (d) compliance with legal obligations. You have the rights described above, plus the right to lodge a complaint with your local data protection authority.

For Users in California

Under the California Consumer Privacy Act (CCPA), you have the right to know what personal information we collect and how it is used, to request deletion, and to opt out of any sale of personal information. We do not sell personal information.

Cookies

We use cookies to:

  • Keep you logged in
  • Remember your preferences
  • Understand how you use the Service

You can control cookies through your browser settings. Disabling cookies may affect the functionality of the Service.

Children's Privacy

The Service is not intended for users under 18 years of age. We do not knowingly collect information from children. If we learn that we have collected personal information from a child, we will delete it.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on this page and updating the "Last updated" date. Your continued use of the Service after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us at:

Email: support@centence.ai