Cookie Policy
Mystical Realms
Effective Date: March 8, 2026
Last Updated: March 30, 2026
Website: https://mystical-realms.com
Contact: privacy@mystical-realms.com
Operator: Joshua McLain
1. What Are Cookies and Similar Technologies
Cookies are small text files placed on your device by a website when you visit it. They are used to keep you signed in, remember certain preferences, and support analytics and service operations.
Local Storage (also called "Web Storage") is a browser feature that stores data on your device without sending it to the server on every request. We use it for application state and analytics-related persistence.
2. Cookies and Storage Technologies We Use
Mystical Realms uses strictly necessary authentication cookies, functional local storage, and production analytics technologies. We do not use advertising, social media, or cross-site behavioral targeting cookies.
2.1 Cookies
| Name | Provider | Purpose | Category | Duration |
|---|---|---|---|---|
sb-* (such as Supabase access and refresh token cookies) | Supabase | Authentication and session management | Strictly necessary | Access token: about 1 hour; refresh token: rotated on use |
ph_* cookies | PostHog | Product analytics and returning-session recognition in production | Analytics | Varies; typically up to 1 year |
2.2 Local Storage
| Key | Purpose | Category | Duration |
|---|---|---|---|
auth-storage | Persists authentication and profile state across page loads | Functional / Strictly necessary | Until sign-out or browser data is cleared |
tarot-store | Remembers deck artwork preferences | Functional / Strictly necessary | Until browser data is cleared |
ph_* local storage entries | PostHog analytics persistence and session state in production | Analytics | Varies according to PostHog configuration |
2.3 Analytics Technologies
We use two analytics providers in production:
| Technology | Purpose | Cookie / Storage Use | Category |
|---|---|---|---|
| PostHog | Product analytics for feature usage, funnels, and in-app behavior | May use first-party cookies and local storage | Analytics |
| Vercel Analytics | Aggregated page and route analytics | Designed to operate without third-party cookies; see Vercel documentation for details | Analytics |
3. How We Use Analytics
We use analytics to better understand how Mystical Realms is used and to improve the product. This includes understanding:
- Which features are used most often
- Which pages and flows people visit
- Browser, device, and screen-size patterns
- Performance and usability issues
We do not use analytics for advertising, retargeting, or selling user data.
We configure our analytics tools for internal product understanding only. However, because analytics technologies may still rely on cookies or similar storage, they are described here and in our Privacy Policy.
4. Third-Party Analytics and Cookies
The Service uses the following third-party providers in connection with cookies or similar technologies:
- Supabase: Authentication cookies are required for sign-in and account session management.
- PostHog: Product analytics provider. PostHog may set first-party cookies or write to local storage in production to support analytics persistence and session recognition.
- Vercel Analytics: Page analytics provider. Vercel documents its analytics product as privacy-focused and not reliant on third-party cookies, but its analytics data collection is still disclosed here for transparency.
We do not use:
- Advertising network cookies
- Social media plugin cookies
- Cross-site behavioral tracking cookies
- Third-party marketing pixels
5. Managing Cookies and Local Storage
You can control and delete cookies through your browser settings. Most browsers allow you to:
- View stored cookies
- Delete individual cookies or all cookies
- Block cookies for specific sites or all sites
- Receive alerts when a cookie is set
If you block or delete the Supabase authentication cookies (sb-*), you may not be able to sign in or stay signed in.
If you clear local storage, app preferences and some persisted analytics/session state may reset.
Browser help links:
- Chrome: https://support.google.com/chrome/answer/95647
- Firefox: https://support.mozilla.org/en-US/kb/cookies-information-websites-store-on-your-computer
- Safari: https://support.apple.com/guide/safari/manage-cookies-sfri11471/mac
- Edge: https://support.microsoft.com/en-us/microsoft-edge/manage-cookies-in-microsoft-edge-view-allow-block-delete-and-use-168dab11-0753-043d-7c16-ede5947fc64d
6. Do Not Track Signals
Some browsers send "Do Not Track" (DNT) signals. Because Mystical Realms does not use advertising or cross-site behavioral tracking, the Service does not change behavior in response to DNT signals.
7. Changes to This Cookie Policy
We may update this Cookie Policy from time to time. When we do, we will update the "Last Updated" date above and post the revised version on this page.
8. Contact Us
If you have questions about this Cookie Policy or our use of cookies and similar technologies, contact us at:
Joshua McLain
Mystical Realms
Email: privacy@mystical-realms.com
Website: https://mystical-realms.com
This Cookie Policy was last reviewed on March 30, 2026.