Privacy Policy

What we collect

• Account details: your email address and name, created when you sign up through our sign-in provider.
• Your books and prompts: the ideas, text and settings you enter, and the books, covers and images generated for you. These are stored so you can come back to them.
• Credits and billing records: your plan, credit balance and credit history. We never see or store your full card number.
• Usage and device data: basic technical logs such as pages visited, errors and approximate location from your IP address.
• Advertising data: only if you accept ad cookies, our Meta Pixel records page views and sign-up or purchase events.

How we use it

• To provide the service: generate and store your books, apply your plan and credits, and let you export files.
• To process payments and prevent fraud or abuse, including limits on automated generation.
• To measure and improve our own advertising and product, where you have agreed to cookies.
• To answer support requests and send service messages such as sign-in links and receipts.

Who we share it with

We use service providers that process data on our behalf:

• Clerk for sign-in and account security.
• Cloudflare for hosting, our database and image storage.
• Whop for payments and subscription billing.
• AI providers (such as OpenRouter and Higgsfield) receive the prompts and text needed to write and illustrate your book. Do not enter confidential or personal information about other people into a prompt.
• Meta receives advertising events only if you accept ad cookies.

We do not sell your personal information.

Cookies

We use essential cookies and local storage to keep you signed in and remember your settings and drafts. Advertising cookies and the Meta Pixel load only after you choose Accept in the cookie banner. You can change your choice at any time with Cookie settings in the footer.

Retention and deletion

We keep your account and books until you delete your account. You can delete your account in Settings; this removes your profile and stored books. Some billing records may be kept as required for tax and accounting.

Your rights

Depending on where you live, you may have the right to access, correct, export or delete your personal data, and to object to or restrict certain processing. To make a request, use the Feedback option inside the app while signed in and we will respond.

Children

kdpbook.us is for adults and is not directed to children under 13. We do not knowingly collect their data.

Changes

We may update this policy and will change the date above when we do.