Privacy policy

the website provides the user with the collection and processing of personal information with respect for privacy in accordance with the European General Data Protection Regulation (GDPR) relating to computers, files and freedoms.
Under the Data Protection Act, dated January 6, 1978, any user has the right to access, rectify, delete and oppose his personal data. The users can enforce their rights Via the contact page.

There are two ways for collecting information on the website.

The first way is to collect information "manually" through forms that are filled by users. The second way is to collect information automatically by using cookies.

Data collection by forms
The information collected manually include the input parameters that are entered in the calculation pages. They include also personnal data like name, email address, password, etc. entered during a subscription to the service available on the website, during a login or through a registration. The collected information may also include sensitive information like payment mean identifiers (for instance credit card number, etc.).

Data collection with cookies
Some information may be collected with cookies. Cookies are small text files installed on the user's browser storing some information that can be separated in 4 categories:

  • 1) critical cookies - necessary information for the proper functioning of the website and for security,
  • 2) functionnal cookies - facilitating the website use by remembering parameters from previous visits
  • 3) analytical cookies - tracking a user for better fitting the website features to her/his needs and not for targeted advertising,
  • 4) marketing cookies - tracking a user for targeted advertising

Marketing cookies are not used on this website.
All personnal data collected by CLAVIS are stored on servers located in Europe.

information collected with forms
The information collected through a calculation form are only used to process calculations.
The personnal information entered during a subscription or during a user registration/login are only used to manage the subscription process, the access rights and the functionalities proposed on the "account" page. They may be used also for communication with contractor/registered user through emailing campains, newsletters or direct emailing. Critical information used for online payment (i.e. payment mean identification) are directly and securely managed by CLAVIS's online payment intermediaries (STRIPE and PAYPAL) and are neither processed nor stored on the website server. Online payment intermediaries tare recognized around the world for their know-how in the field of secure banking information processing

Informations collected with cookies
Data from critical and functionnal cookies are only used to ensure a secured service and to facilitate users navigation. These data are anonymous.
Analytical cookies are third party cookies (google/analytics cookies) which are used for analytical traffic survey only.

Information disclosure to third party
Two types of information are managed : nominative and anonymous information.

Nominative data are collected with forms on the website. They concern contractors and users having subscribed to the reserved service (see "terms of subscriptions"). These data are only used internally by CLAVIS. CLAVIS commits not to disclose them to any third party.
The information only transmitted to a third party are collected by "google/analytics" and are anonymous. For instance the IP number of a user, providing geographical information, can be disclosed to "google analytics", but his/her email address or any information enabling to identify her/him are never communicated.

However, CLAVIS may disclose users nominative information only in special cases, such as (i) to comply with valid legal requirements, such as a law, regulation, search warrant, subpoena or court order; or (ii) when CLAVIS has reason to believe that disclosing this information is necessary to identify, contact or bring legal action against someone who, intentionally or unintentionally, may be causing injury or harm to users or other persons or violating the Terms and Conditions of Use for this website.

Newsletters and emailing
CLAVIS intends to send newsletters as well as to carry out emailing campaigns to its users and prospects in order to promote "optical-calculation" services and news. The email list is made up of emails from registrations on the site but may come also from other sources such as lists of participants in trade fairs/conferences or from public/commercialized databases, etc.
According to the regulation, anyone on the list can opt out by clicking on the dedicated link on each newsletter and promotional email.

CLAVIS S.A.R.L. takes significant measures to preserve the security of personal data. These measures include adapted precautions to protect users data from loss, misuse, unauthorized access or disclosure, alteration, or destruction.
Although these measures are appropriate, CLAVIS cannot fully guarantee that the data protection system is flawless. may contain hyperlinks to other websites. CLAVIS is not responsible for the privacy practices or for the content of these websites which may collect users data thanks to cookies or other means which are not under CLAVIS control. In order to ensure their privacy protection, users shall take notice of the privacy policy of each website they visit.

The privacy policy may be subject to change, in particular when new services are offered. Any privacy policy variation will be posted on this page without notification.

For any question regarding the privacy policy of, contact us by using the form in the contact page.