Cookie Policy

Last updated: 22 January 2026 / 22 Gennaio 2026

This Cookie Policy explains how Cartesia S.r.l. ("we", "us", or "our") uses cookies and similar technologies on Axiom Charts (the "Service") in accordance with EU Directive 2002/58/EC (ePrivacy Directive) and Regulation (EU) 2016/679 (GDPR).

Data Controller

The Data Controller is Cartesia S.r.l., with registered office at Largo Lucio Lazzarino 1, 56122 Pisa (PI), Italy. VAT Number: IT02543630509. Contact: info@cartesia.one.

What Are Cookies

Cookies are small text files placed on your device (computer, smartphone, or tablet) when you visit a website. They are widely used to make websites work efficiently, provide functionality, and give site owners information about how the site is used. Similar technologies include localStorage and sessionStorage, which store data in your browser.

Types of Cookies and Technologies We Use

We use the following categories of cookies and similar technologies:

1. Strictly Necessary Cookies (No Consent Required)

These cookies are essential for the Service to function and cannot be disabled. They do not require your consent under EU law.

  • Firebase Authentication Cookies: Used to maintain your login session and authenticate requests. These are set by Google Firebase when you sign in.
  • Cookie Consent Cookie (axiom-cookie-consent): Stores your cookie preference choice (accepted/declined). This is a localStorage item.

2. Functional Cookies/Storage (Consent Required)

These technologies remember your preferences and choices to enhance your experience. We request consent before setting these.

  • Language Preference: Your selected language (English/Italian) is stored in your user profile and reflected across sessions.
  • Shadow User Identifier (axiom_fingerprint, axiom_shadow_user): For anonymous users, we store a browser fingerprint and usage data in localStorage to provide limited free trials. This data identifies your browser to track trial usage.

3. Analytics Cookies (Consent Required)

We may use analytics to understand how visitors interact with the Service. Currently, Firebase Analytics may collect usage data if configured. When enabled, these cookies help us analyze traffic patterns and improve the Service.

  • Firebase Analytics: May collect anonymized usage statistics, page views, and feature usage. Data is processed by Google under their Data Processing terms.

Third-Party Cookies

Our Service uses Google Firebase, which may set its own cookies for authentication and analytics purposes. Google's use of cookies is governed by their privacy policy at policies.google.com/privacy. We have a Data Processing Agreement with Google to ensure GDPR compliance.

Legal Basis for Cookies

Strictly necessary cookies: Exempt from consent requirement under Article 5(3) of the ePrivacy Directive as they are essential for providing the Service you requested. Functional and analytics cookies: We rely on your consent (Article 6(1)(a) GDPR) obtained through our cookie banner before setting these cookies.

How to Manage Cookies

You can manage cookies in several ways:

  • Cookie Banner: When you first visit the Service, you can accept or decline non-essential cookies using our banner. You can change this preference at any time by clearing your browser data and revisiting the site.
  • Browser Settings: Most browsers allow you to view, manage, and delete cookies. Please refer to your browser's help documentation for instructions.
  • Clearing localStorage: To remove the shadow user fingerprint and other localStorage data, you can clear your browser's site data for this domain.

Please note: Blocking essential cookies may prevent the Service from functioning correctly. Blocking functional cookies will disable the anonymous trial feature.

Browser Cookie Settings

Chrome: support.google.com/chrome/answer/95647. Firefox: support.mozilla.org/kb/cookies. Safari: support.apple.com/guide/safari/manage-cookies. Edge: support.microsoft.com/microsoft-edge/cookies.

Cookie Retention Periods

Firebase Auth session cookies: Duration of your browser session or until you sign out. Cookie consent preference: Persistent until you clear browser data. Shadow user fingerprint: 12 months of inactivity. Analytics cookies: Up to 2 years (if enabled).

Changes to This Cookie Policy

We may update this Cookie Policy from time to time. Any changes will be posted on this page with an updated revision date. We encourage you to review this policy periodically.

Contact Us

If you have any questions about our use of cookies, please contact: Cartesia S.r.l., Largo Lucio Lazzarino 1, 56122 Pisa (PI), Italy. Email: info@cartesia.one. PEC: cartesia@pec.it.

We use cookies to improve your experience. By continuing to use this site, you agree to our Privacy Policy and Cookie Policy.