Last updated: 18 October 2026
Controller: 2J LAMBRE (SASU), 10 rue de Penthièvre, 75008 Paris, France – contact@2jagency.com.
The calculator runs entirely in your browser. The figures you enter are not sent to us or stored by us. The page sets no cookies and loads no analytics or advertising scripts.
The site is hosted on GitHub Pages. GitHub may log technical data such as your IP address when serving the page; see GitHub's privacy statement.
We use your name, email address, the documents you send and, for payment, the data processed by our payment provider (Stripe), only to answer you, deliver the audit and meet accounting obligations. Legal basis: performance of a contract or pre-contract steps, and legal obligation. Documents sent for an audit are deleted within 90 days after delivery unless you ask otherwise; accounting records are kept for 10 years as required by French law. We do not sell your data.
You can request access, rectification, erasure, restriction, portability or object by writing to contact@2jagency.com. You may also complain to the CNIL (www.cnil.fr).