1. Scope
This Privacy Policy applies to CloseBook at closebook.online, including guest use, registered accounts, authentication emails, synchronized books and support requests.
2. Information processed
Guest mode
Guest books are stored in the browser on the device being used. CloseBook may also record limited technical usage information such as a randomly generated guest identifier, visit timestamps, page path and feature-event names.
Registered accounts
CloseBook processes the account email address, first and last name, password hash and salt, account status, plan and limits, email-verification records, password-reset records, session records, book data, audit events and basic usage events.
Book content
Book data may include titles, references, responsible-person names, currencies, starting balances, Money in and Money out transactions, categories, invoice numbers, documentation exceptions, reconciliation values, explanations and audit history.
CloseBook does not currently accept or store invoice, receipt or other document files.
3. How information is used
- To provide guest and registered-account features.
- To authenticate users, verify email addresses and reset passwords.
- To synchronize registered-account books between devices.
- To maintain audit history, prevent abuse and diagnose failures.
- To answer support, deletion and security requests.
4. Service providers
CloseBook uses Cloudflare infrastructure for website delivery, server functions and database storage. MailerSend is used to deliver verification and password-reset email. These providers process information as needed to deliver their services.
5. Cookies and browser storage
Registered sessions use a secure, HTTP-only session cookie. Guest books and some interface preferences are stored in browser storage. Clearing browser data may permanently remove guest books.
6. Retention
Registered-account information is retained while the account remains active and as reasonably necessary for security, support and legal obligations. Expired sessions and temporary verification/reset records may be periodically removed. Guest data remains on the user's device until the browser removes it or the user clears it.
7. Sharing
CloseBook does not sell personal data. Information may be disclosed to infrastructure providers, when required by law, to protect the service or users, or during a legitimate business transfer subject to appropriate safeguards.
8. User choices and requests
Users can export book backups. Registered users may request access, correction or deletion by contacting [email protected]. Identity verification may be required before a request is completed.
9. Children
CloseBook is intended for adults and business users. It is not directed to children.
10. Changes
This policy may be updated when the product, providers or legal requirements change. The updated date will appear at the top of this page.
11. Contact
Privacy questions: [email protected].