Privacy policy

Last updated: October 13, 2026

Data controller

Jertho SRL, [TODO registered office address]. Contact: [TODO contact email].

This website

This website sets no cookie and uses no analytics nor advertising tool. It is hosted by Cloudflare, which processes the ip address of the visitors to deliver the pages and protect the website against abuse.

The app: what we keep

KikouBook asks for no name, email, phone number nor password. We keep:

• for each device: the fingerprint of its secret key (the key itself stays in the browser), a name derived from the browser (e.g. "Safari on iPhone"), its creation and last use dates;
• the fingerprint of your recovery code, if you created one;
• your libraries, their books, series, ratings and comments;
• in a library shared with you: the nickname you use there, your reservations and book suggestions.

The ip address is used to limit abuse (number of requests) and may appear in the technical logs of the server, kept [TODO duration].

To look up a book, our server queries the Bibliothèque nationale de France and Open Library with the searched text or the ISBN, without any information about you.

What your relatives see

The relatives you share a library with see its books, their statuses and its series, and know that a book is reserved, without knowing by whom. They never see your ratings nor your comments. You see their nickname and who reserved which book.

Browser storage

The secret key of the device is kept in the local storage of the browser: it is required to find your libraries and is never used for tracking.

Legal bases

The data of the app is processed to provide the service you use (article 6.1.b GDPR); the ip address, for the security of the service (legitimate interest, article 6.1.f).

Hosting and retention

The data of the app is hosted by [TODO VPS hosting provider, address], and its backups by Cloudflare (R2) [TODO region]. It is kept as long as you use the service, until it is deleted [TODO retention of inactive devices].

Your rights

You can delete your libraries and remove your devices yourself in the app. You have the right to access, rectify, erase, restrict, object and port your data: write to us at [TODO contact email].

You can lodge a complaint with the Belgian Data Protection Authority, rue de la Presse 35, 1000 Brussels (dataprotectionauthority.be).