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Privacy policy

What we collect when you make a book, who helps us process it, how long we keep it and how to see or delete it. We do not sell your data and we do not show ads.

Last updated

Who we are

Kids Books Maker ("we", "us") runs the website kidscoloringbookmaker.com and the Kids Books Maker app. We are responsible for the personal information described in this policy.

Questions or requests about your data: hello@kidscoloringbookmaker.com. We reply within 2 business days.

What we collect

Your account

  • Email and password: your email address. Your password is handled by our sign-in provider, Supabase, and stored only in hashed form; we never see it.
  • Continue with Google: your email address, your name, your Google account ID and, if Google shares it, your profile picture.
  • Whether you have confirmed your email address, and when you signed up.

What you create

  • The ideas, character descriptions, book settings and words you type.
  • The book plans, page text, pictures, previews and checks that the app makes from them.
  • Pictures you upload to replace a page, and the PDF and EPUB files you export.

Payments and credits

  • When you pay, Stripe collects your card details on its own checkout page. We never see or store your full card number. Stripe tells us the amount, the currency, whether the payment succeeded or was refunded, and the email address used.
  • A history of the credits added to and used by your account.

Keeping the free book to one per person

To give the free credits only once per person, we keep a one-way scrambled code (a SHA-256 hash) made from your email address and, if you use Google, your Google account ID. The code cannot be turned back into your address.

Technical information

Like most websites, our hosting providers record short-lived technical logs, such as IP address, browser type, the page requested and the time, to keep the service secure and to fix problems.

How we use it

  • To run your account and make, check, store and export your books.
  • To take payments, add and return credits, and handle refunds.
  • To prevent abuse, such as claiming the free book more than once.
  • To answer your messages and fix problems.
  • To meet legal duties, such as keeping payment records for tax.

We do not sell your personal information, share it for advertising, or use it to build advertising profiles. We only email you about your account, such as confirming your address or resetting your password.

Legal bases (UK and EU)

We use your information to perform our contract with you (running the service you asked for), for our legitimate interests (security, preventing abuse, improving the service) and to meet legal obligations (tax and accounting records).

How AI makes your book

The text you type is sent to AI providers that work for us. They process it to return a result to us, under their terms for business API customers:

  • Anthropic (Claude) plans the book and writes page text and picture descriptions.
  • Google (Gemini) draws the pictures.
  • OpenAI (ChatGPT) proofreads text, checks pictures, and can draw pictures when Gemini is unavailable.

We send them what they need for the book, such as your idea, character descriptions, settings, page text and pictures to check. We do not send them your email address or payment details.

Who helps us run the service

Service providers that process personal information for us
ProviderWhat they do
SupabaseSign-in, our database, and storage for pictures, uploads and exported files
CloudflareHosts the website and protects it from attacks
RailwayRuns our app server and the background work that makes your book
StripeTakes payments and refunds
AnthropicAI planning and writing
GoogleAI pictures (Gemini) and Continue with Google
OpenAIAI proofreading and picture checks, and backup pictures

Each provider may only use your information to provide its service to us. We may also share information if the law requires it, to protect people from harm, or as part of selling or reorganising the business, in which case this policy continues to apply.

Cookies and browser storage

  • Sign-in cookies keep you signed in. The app cannot work without them, so we do not ask for consent to them.
  • Your browser's local storage keeps unsaved drafts and small settings, such as whether you have seen a welcome note. It stays on your device.
  • Google sets its own cookies when you use Continue with Google, and Stripe does on its checkout page. Cloudflare may set a security cookie to tell people from bots.

We do not use analytics, advertising or tracking cookies.

Children

Kids Books Maker is for parents, teachers and other adults who make books for children. You must be 18 or older, or the age of majority where you live, to create an account. Children should not use the service themselves.

We do not knowingly collect personal information from children. If you think a child has given us their information, write to hello@kidscoloringbookmaker.com and we will delete it.

How long we keep it

  • Your account and books: while your account is open. You can delete a book at any time in My books; this deletes its pages, pictures, uploads and downloads.
  • When you ask us to delete your account, we delete your account and books within 30 days.
  • Payment and credit records: as long as tax and accounting law requires.
  • The scrambled one-per-person code: kept after deletion, so the free credits stay one per person.
  • Technical logs and backups: removed on our providers’ regular schedules, usually within weeks.

How we protect it

Connections to the site are encrypted (HTTPS). Each book and file is tied to your account, and the app checks it is yours before showing it. Access to our systems is limited to the people who run the service. No system is perfectly secure; if a breach affects you, we will tell you as the law requires.

International transfers

Our providers process information in the United States and other countries, which may have different data protection laws from yours. Where UK or EU law applies, we rely on safeguards such as the European Commission’s Standard Contractual Clauses and the providers’ data processing terms.

Your rights

Depending on where you live, you can ask us to:

  • show you the personal information we hold about you, and give you a copy;
  • correct it;
  • delete it, including your whole account;
  • stop or limit some uses, or object to them.

Email hello@kidscoloringbookmaker.com from the address on your account. We may ask you to confirm it is you, and we answer within one month (UK and EU) or 45 days (California).

California residents: we do not sell or share personal information for cross-context behavioural advertising, and we will not treat you differently for using your rights. You can also complain to your local data protection authority; in the UK, that is the Information Commissioner’s Office (ICO).

Changes to this policy

If we change how we use your information, we will update this page and the date at the top. If a change is significant, we will tell you by email or in the app before it takes effect.

Privacy policy | Kids Books Maker