BookPilot Privacy Policy

BookPilot ("BookPilot," "we," "us") is a reading companion app that lets you ask questions about a book you're reading and get answers based only on what you've read so far. This policy explains what information we collect, how we use it, who we share it with, and the choices you have. By using BookPilot you agree to this policy.

Information we collect

• Account information. When you create an account we collect your email address. If you use Sign in with Apple, Apple may provide a private relay email instead of your real address. We use a third-party authentication provider (Supabase) to manage sign-in.
• Reading activity. The books in your library and your reading position (chapter and page) so we can sync your progress and enforce the spoiler boundary — the AI only sees content up to where you've read.
• Chat content. The questions you ask the in-app AI and the answers it returns, so your conversation history is available to you across sessions.
• Content you upload. If you upload your own book files (EPUB/PDF), we store and process them to power reading and the AI features for your account.
• Subscription status. Whether you have an active BookPilot Pro subscription. Purchases are processed by Apple — we never receive or store your payment card details.
• Basic technical data. Limited diagnostic information needed to operate and troubleshoot the service.

How we use your information

• To provide the core service: reading, syncing your progress, and answering your questions without spoiling content you haven't reached.
• To generate AI answers. When you ask a question, your question and the relevant passages from the book (only up to your current reading position) are sent to our AI provider, OpenAI, to produce a response. We instruct the model to use only those passages.
• To manage your account, subscription, and usage limits.
• To maintain security and prevent abuse.

Service providers we share data with

We do not sell your personal information. We share data only with the providers we rely on to run BookPilot:

• Supabase — authentication and database hosting.
• OpenAI — processes your questions and the relevant book excerpts to generate answers.
• Render — hosts our backend servers.
• Apple — processes in-app purchases and, if used, Sign in with Apple.
• Expo — delivers the app and over-the-air updates.

Each provider processes data on our behalf to deliver the service.

Data retention and deletion

We keep your information for as long as your account is active. You can delete your account at any time from within the app at Account → Delete account. Deleting your account permanently removes your library, uploaded books, reading progress, chat history, and subscription record from our systems. Subscription cancellations are managed through your Apple ID settings.

Security

We use industry-standard measures to protect your information, including encrypted connections and access controls. No method of transmission or storage is completely secure, but we work to protect your data.

Children's privacy

BookPilot is not directed to children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided us information, contact us and we will delete it.

Your choices and rights

You can access and delete your data through the in-app account deletion flow. Depending on where you live, you may have additional rights to access, correct, or delete your personal information; contact us to make a request.

Changes to this policy

We may update this policy from time to time. When we do, we'll revise the "Last updated" date above. Continued use of BookPilot after a change means you accept the updated policy.

Contact

Questions about this policy or your data? Email bookpilotteam@gmail.com.

---

BookPilot is an independent app and is not affiliated with the authors or publishers of any books available through the app.