Cookie Policy
Last updated: April 26, 2026
1. What Are Cookies
Cookies are small text files that are stored on your device when you visit a website. They help websites remember your preferences, understand how you use the site, and improve your overall experience.
2. How We Use Cookies
Calvin uses cookies and similar technologies for the following purposes:
Essential Cookies
These cookies are necessary for the website to function properly. They enable core functionality such as security, authentication, and session management. You cannot opt out of these cookies.
- Authentication: To keep you signed in and secure your session
- Security: To protect against fraud and unauthorized access
- Preferences: To remember your settings and preferences
Analytics Cookies
Analytics cookies help us understand how visitors interact with our website. These tags load only after you grant consent through our cookie banner. You can withdraw consent at any time by clearing the cookie or local storage entry named calvin-cookie-consent.
- Google Analytics: Aggregate usage statistics about how visitors navigate the site
- Vercel Analytics: Page views and Core Web Vitals performance metrics
Functional Cookies
These cookies enable enhanced functionality and personalization, such as remembering your preferences and settings.
3. Third-Party Cookies
The following third parties may set their own cookies or similar storage when you use our website:
- Firebase: Authentication state for keeping you signed in (essential)
- Stripe: Set during checkout when you start a subscription (essential)
- Google Analytics: Aggregate web analytics (loaded only with your consent)
- Vercel Analytics: Page views and performance metrics (loaded only with your consent)
Other services we rely on (third-party AI providers for food analysis, Sentry for error monitoring, Resend for transactional email) do not set cookies on calvin.vip but may process your data server-side. See our Privacy Policy for details.
These third parties have their own privacy policies governing their use of cookies. We encourage you to review their policies.
4. Cookie Duration
Cookies can be either session cookies or persistent cookies:
- Session Cookies: Temporary cookies that are deleted when you close your browser
- Persistent Cookies: Cookies that remain on your device for a set period or until you delete them
5. Managing Cookies
You can control and manage cookies through your browser settings. Most browsers allow you to:
- View what cookies are stored and delete them individually
- Block third-party cookies
- Block cookies from specific sites
- Block all cookies
- Delete all cookies when you close your browser
Please note that blocking or deleting cookies may impact your experience and limit certain functionality of the Service.
6. Mobile App
Our mobile application uses similar technologies to cookies, such as device identifiers and local storage, to provide functionality and improve your experience. You can manage these through your device settings.
7. Updates to This Policy
We may update this Cookie Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons. We will notify you of any material changes by updating the "Last updated" date.
8. Contact Us
If you have questions about our use of cookies, please contact us at privacy@calvin.vip.