Last updated: May 2026

1. Information We Collect

We collect information you provide directly to us, such as when you create an account, use our services, or contact us for support. This includes:

Account Information: Name, email address, and profile picture
Payment Information: Processed securely through Polar.sh
Content Data: Projects, articles, and brain entries you create
Usage Data: How you interact with our services

2. How We Use Your Information

We use the information we collect to:

Provide, maintain, and improve our services
Process transactions and send related information
Send technical notices, updates, and support messages
Respond to your comments, questions, and requests
Monitor and analyze trends, usage, and activities
Detect, investigate, and prevent fraudulent transactions

Legal Basis for Processing

We process your personal data based on the following legal grounds under GDPR Article 6:

Contract Performance (Art. 6(1)(b) GDPR): Processing necessary for the performance of our service agreement with you, including account management, content generation, and subscription handling.
Legitimate Interest (Art. 6(1)(f) GDPR): Processing for analytics, service improvement, error tracking, and security monitoring where our legitimate interests are not overridden by your rights.
Consent (Art. 6(1)(a) GDPR): Processing based on your explicit consent, such as for marketing communications or product analytics where consent is required. You may withdraw consent at any time. See our Cookie Policy for more detail on our measurement setup.

3. Data Storage & Security

Your content and data are stored securely using industry-standard encryption. We use Convex for real-time data storage and ensure your workspace data is isolated and never shared between accounts.

We implement appropriate technical and organizational measures to protect your personal data against unauthorized or unlawful processing, accidental loss, destruction, or damage.

4. Third-Party Services

We use the following third-party services:

Clerk: Authentication and user management
Polar.sh: Payment processing and subscriptions
Convex: Real-time database and backend
OpenRouter/OpenAI: AI processing for content generation
Langfuse: AI observability and debugging
Umami (self-hosted): Website and help-center analytics for page views, referrers, campaign parameters, and aggregate usage without cookies in the standard setup
PostHog: Product analytics for the authenticated app experience on app.contextter.com
Sentry: Error tracking and monitoring

Each service has its own privacy policy governing the use of your information.

Our public website and help center use self-hosted Umami without analytics cookies in the standard setup. For more detail about cookies and measurement, please see our Cookie Policy.

5. Data Retention

We retain your personal data only for as long as necessary to fulfill the purposes for which it was collected, including to satisfy legal, accounting, or reporting requirements.

When you delete your account, we will delete or anonymize your personal data within 30 days, except where we are required to retain it for legal purposes.

6. Your Rights (GDPR)

Under GDPR, you have the right to:

Access: Request a copy of your personal data
Rectification: Request correction of inaccurate data
Erasure: Request deletion of your data
Portability: Request transfer of your data
Objection: Object to processing of your data
Restriction: Request restriction of processing

To exercise these rights, please contact us at privacy@contextter.com

7. International Transfers

Your information may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place to protect your personal data in accordance with applicable data protection laws.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at privacy@contextter.com