Privacy Information
Last updated: September 12, 2026
Project data, account cloud storage, and backups
ColorBook Builder saves project settings and the My Books index in the browser and syncs signed-in projects to Supabase account storage when the connection is available. Generated images and covers are cached on the device and uploaded to private account storage. Failed uploads can remain pending on the original device. Clearing browser data before synchronization finishes can permanently remove those unsynced files. Keep editable backups of important books and confirm account synchronization before changing devices. Browser storage quotas vary.
Account information
ColorBook Builder account signup may collect an email address, full name, customer-chosen username, and optional profile avatar. The username is used as the display name inside the software. The customer email is used for authentication, confirmation, and account recovery and is not intended to be displayed as a book title or dashboard project name.
API keys
When secure account storage is configured, an OpenAI or KIE AI API key entered by a signed-in customer is encrypted server-side and associated with that customer’s ColorBook Builder account. The raw key is not returned to the browser after setup and is not included in project backup files. This lets the API connection follow the customer’s sign-in to another device. Test builds without account storage configured may temporarily use browser session storage instead.
Gift delivery
When an administrator sends a gift, the recipient email, gift access level, claim-token hash, expiration, delivery status, and claim status are stored in Supabase. Gift invitation emails are sent through Resend. Account confirmation and password-recovery emails are sent through the configured authentication email service.
AI requests
When the customer uses AI features, the relevant prompts are sent to the AI provider selected by the software using the customer’s connected API account. The AI provider’s own privacy and data policies apply to those requests.
Reader Bonus QR Page
If the customer enables the optional Reader Bonus QR Page, the destination URL and short message are stored with the book project locally and in account cloud storage. The software does not host the destination page, collect reader names or email addresses, or send email from the Reader Bonus feature. Any website, form, download, email provider, or data collection used at the QR destination is controlled by the customer and is subject to that provider's privacy terms.
KDP publishing helper
The optional KDP publishing helper runs on Amazon KDP pages in the customer’s browser. It uses the publishing-package file and PDFs selected by the customer to help fill fields and file inputs. It does not ask for or store the customer’s Amazon password.
Third-party sites
Amazon KDP, OpenAI, browsers, checkout providers, and hosting providers operate under their own privacy policies and terms.