Cookie Policy
Last updated: March 3, 2026
This Cookie Policy explains how Castor Flow ("we", "our", or "us") uses cookies and similar technologies on castorflow.com and our web application. This policy should be read alongside our Privacy Policy.
1. What Are Cookies?
Cookies are small text files placed on your device (computer, smartphone, or tablet) when you visit a website. They allow the site to remember your actions and preferences over a period of time, so you don't have to keep re-entering them. Cookies can be "session cookies" (deleted when you close your browser) or "persistent cookies" (stored until they expire or you delete them).
We also use similar technologies such as local storage (used by Firebase Authentication to maintain your login session in the browser).
2. Cookies We Use
2.1 Strictly necessary cookies
These cookies are essential for the website and application to function. They cannot be disabled.
| Name / Provider | Set by | Purpose | Duration |
|---|---|---|---|
| __session / Firebase Auth token | Firebase Authentication | Maintains your login session in the application | Session / 1 year |
| beta_banner_dismissed | Castor Flow (localStorage) | Remembers if you have dismissed the beta announcement banner | Persistent (1 year) |
2.2 Analytics cookies
We may use Google Analytics to understand how visitors use our website. Analytics data is aggregated and anonymised — we cannot identify individual users from it. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
| Name / Provider | Set by | Purpose | Duration |
|---|---|---|---|
| _ga | Google Analytics | Distinguishes unique users by assigning a randomly generated number as a client identifier | 2 years |
| _ga_* | Google Analytics | Used to persist session state | 2 years |
2.3 Third-party cookies
Some of our features rely on third-party services that may set their own cookies. We have no direct control over these cookies.
| Name / Provider | Set by | Purpose | Duration |
|---|---|---|---|
| Firebase / Google Cloud | Google LLC | Infrastructure, authentication, and performance monitoring | Varies |
| Stripe | Stripe, Inc. | Fraud prevention and payment processing (only on payment pages) | Varies |
3. Your Cookie Choices
You have several options for managing cookies:
- Browser settings: Most browsers allow you to refuse cookies or delete existing cookies via their settings. Consult your browser's help documentation for instructions. Note that disabling strictly necessary cookies will break the application.
- Google Analytics opt-out: Install the Google Analytics Opt-out Browser Add-on.
- Do Not Track: Some browsers offer a "Do Not Track" signal. We honour this signal where technically feasible.
Refusing analytics or third-party cookies will not affect your core use of Castor Flow, only our ability to measure and improve the service.
4. Legal Basis for Cookie Processing
Under the GDPR and the ePrivacy Directive:
- Strictly necessary cookies are processed on the basis of our legitimate interest in operating the service (Art. 6(1)(f) GDPR). No consent is required.
- Analytics and non-essential cookies are processed on the basis of your consent (Art. 6(1)(a) GDPR). You may withdraw consent at any time by adjusting your browser settings.
5. Changes to This Policy
We may update this Cookie Policy when we add new features or change how we use cookies. The date of the latest update is always shown at the top. For significant changes we will notify you via our website or, where appropriate, by email.
6. Contact Us
If you have questions about our use of cookies, please contact us at privacy@castorflow.com.