Privacy Policy

How we collect, use, and protect your data.

Last updated: March 29, 2026

1Information We Collect

  • Account information: email address and display name provided at registration.
  • Conversation data: messages, prompts, and AI responses within your sessions.
  • Uploaded files: documents, images, and files you attach to conversations (processed in-memory, not stored permanently unless you explicitly save them).
  • Usage data: feature usage, session length, model selections, and error logs for improving the service.
  • Payment information: handled entirely by Stripe. We never store card numbers or payment credentials on our servers.

2How We Use Your Information

  • To provide and improve the Quill AI service.
  • To process your requests and generate AI responses.
  • To manage your account and subscription plan.
  • To send transactional emails (account confirmation, billing receipts). We do not send marketing emails without explicit consent.
  • To detect and prevent abuse, fraud, and misuse of the platform.
  • To analyse aggregate usage patterns (never individual content) to improve model quality.

3Data Storage and Retention

  • Conversation history is stored in our Neon PostgreSQL database and linked to your account.
  • Signed-in users can manage and delete conversation history directly in the app.
  • Uploaded files are processed transiently and not stored after your session ends.
  • You may delete your account and all associated data at any time from Settings → Account.
  • Upon deletion, all personal data is permanently removed within 30 days.

4Third-Party Services

  • Google Gemini API: your prompts are sent to Google's AI infrastructure to generate responses. Google's data processing terms apply. We do not share your account identity with Google.
  • Neon (PostgreSQL): hosts our database. Data is encrypted at rest and in transit.
  • Stripe: processes all payments. We share only what Stripe requires (email, subscription tier).
  • Vercel / hosting provider: serves the application. Standard infrastructure logging applies.

5Cookies and Tracking

  • We use a session cookie set by Better Auth to keep you signed in. No advertising cookies.
  • We do not use third-party analytics trackers (Google Analytics, Meta Pixel, etc.).
  • We collect minimal server-side logs for security and error monitoring.

6Your Rights

  • Access: request a copy of all data we hold about you.
  • Correction: update your account information at any time in Settings.
  • Deletion: permanently delete your account and all data.
  • Portability: export your conversation history in JSON format (Settings → Export).
  • If you are located in the EU/EEA, you have additional rights under GDPR including the right to lodge a complaint with your local data protection authority.

7Security

We use industry-standard encryption (TLS in transit, AES-256 at rest), JWT-based session tokens, and access controls to protect your data. No system is 100% secure — if you discover a vulnerability, please report it to security@quill.ai.

8Changes to This Policy

We may update this policy from time to time. We will notify you by email or via an in-app banner at least 14 days before significant changes take effect. Your continued use of Quill AI after that date constitutes acceptance.