Last updated 2026-09-03
This page explains what Bookseed collects, why, and who we share it with. It applies to everyone who uses Bookseed.
Bookseed is a service of TianSphere Limited.
Account details: your email, and your name or display name if you set one.
Book content: the ideas you type in, the specifications, outlines and chapter text Bookseed writes, and any covers and PDFs it produces.
Billing records: your Stripe customer and subscription IDs, and your credit history. We never see or store your card number.
We use your account details to sign you in and to run your subscription. We use your book content to generate, store and let you download your books.
Your idea and chapter text are sent to an AI model provider so the book can be written. We do not use your book content to train any model.
We share data with a small set of companies that run parts of the service:
| Processor | Purpose | Location |
|---|---|---|
| OpenRouter | Routes your idea and chapter text to AI model providers, currently Google, to write and design your book. What happens to that text at the provider is governed by their own terms. | United States |
| Stripe | Payments and subscription billing. | United States |
| Resend | Sign-in codes and other service email. | United States |
| Cloudflare R2 | Stores your covers and generated PDFs. | Global network |
| Cloudflare Turnstile | Checks that a sign-in request comes from a person, not a script. It receives your IP address and browser details for that check. | Global network |
| Railway | Hosts the application and the database. | United States |
| Sign-in, only if you choose to continue with Google. | United States |
We keep your account and book content while your account is active. If you delete your account, we remove your books and credits, and a cleanup job purges the underlying files within 7 days.
Stripe keeps invoice records for as long as the law requires.
You can update your display name, and review your credit history, from Settings.
To access, correct, export or delete your data, use Settings or write to hello@bookseed.io. Deleting your account removes your books, credits and sign-in, and cancels any active subscription.
Bookseed is for people 18 and older. We do not knowingly collect data from children.
We use industry-standard measures to protect your data, including encrypted connections and access controls on our systems. No method of storage or transmission is completely secure.
We may update this policy as the product changes. We will change the date at the top of this page when we do.
Questions about this policy go to hello@bookseed.io. Our address is Unit 1113, 11/F, Peninsula Centre, No. 67 Mody Road, Tsim Sha Tsui, Hong Kong.