Cookie Policy

Last updated: February 8, 2026

OptimalCardSetup uses minimal browser storage to operate. We do not use tracking cookies, advertising cookies, or third-party analytics cookies. This page explains exactly what we store in your browser and why.

What We Use

We use only essential storage mechanisms required for the Service to function:

Authentication Token (localStorage)

A JWT (JSON Web Token) stored in your browser's localStorage to keep you signed in between visits. This token contains your session information and is sent with API requests to verify your identity. It is not a cookie, but we include it here for full transparency. It is removed when you sign out.

Theme Preference (cookie)

A single cookie that stores your light or dark mode preference so the page renders with the correct theme before JavaScript loads. This prevents a flash of the wrong theme on page load. It contains no personal information.

What We Do NOT Use

  • No third-party tracking cookies — We do not use Google Analytics, Facebook Pixel, or any other third-party tracking service.
  • No advertising cookies — We do not serve ads and do not set cookies for ad targeting or retargeting.
  • No analytics cookies — We use simple server-side analytics that do not require any client-side cookies or tracking scripts.
  • No cross-site tracking — We do not track your activity across other websites.

Third-Party Services

Our third-party service providers (Stripe, Google OAuth, Microsoft OAuth, Cloudflare) may set their own cookies when you interact with their services (e.g., during payment checkout or OAuth sign-in). These cookies are governed by each provider's own cookie and privacy policies, not ours. We have no control over these cookies and they are only set during direct interactions with those services.

Managing Cookies

Since we only use essential storage, disabling cookies or clearing localStorage may affect your ability to stay signed in or preserve your theme preference. You can manage cookies and local storage through your browser settings:

  • Clear theme cookie — Delete cookies for optimalcardsetup.com in your browser settings. Your theme will reset to the system default.
  • Clear auth token — Clear localStorage for optimalcardsetup.com in your browser's developer tools, or simply sign out through the app (which removes the token automatically).

Contact

If you have questions about our cookie practices, contact us at support@optimalcardsetup.com. For more details about how we handle your data, see our Privacy Policy.