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Privacy Policy

Last updated: March 2026

1. Introduction

ProseLab ("we," "our," or "us") operates the ProseLab website and writing practice platform. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our services.

2. Information We Collect

We may collect the following types of information:

  • Account information: Email address, display name, and authentication credentials when you sign up.
  • Usage data: Passages you study, completions you submit, feedback you receive, and activity patterns (e.g., heatmap data).
  • Technical data: IP address, browser type, device information, and cookies (see our Cookie Policy).

3. How We Use Your Information

We use your information to:

  • Provide, maintain, and improve our services
  • Authenticate your identity and manage your account
  • Store and display your saved completions and progress
  • Send service-related communications (e.g., email verification)
  • Analyze usage to improve the product
  • Comply with legal obligations

4. Third-Party Services

We use third-party services that may process your data:

  • Supabase: Authentication and database hosting
  • Anthropic (Claude): AI analysis and feedback
  • ElevenLabs: Text-to-speech for reading aloud

Each provider has its own privacy policy. We recommend reviewing them for details on how they handle your data.

5. Data Retention

We retain your account data and saved completions for as long as your account is active. You may request deletion of your account and associated data at any time by contacting us at contact@proselab.io.

6. Your Rights

Depending on your location, you may have the right to access, correct, delete, or port your personal data. You may also have the right to object to or restrict certain processing. To exercise these rights, contact us at contact@proselab.io.

7. Security

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction.

8. Changes

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.

9. Contact

For questions about this Privacy Policy or our data practices, contact us at contact@proselab.io or visit our Contact page.

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