Cookie Policy
Last updated: February 21, 2026
1. What Are Cookies?
Cookies are small text files that are placed on your computer or mobile device when you visit a website. They are widely used to make websites work more efficiently and provide information to the website owners.
Similar technologies, such as local storage, session storage, and web beacons, may also be used for the same purposes. In this policy, we refer to all these technologies as "cookies."
2. How We Use Cookies
Zenova uses cookies and similar technologies for the following purposes:
- Authentication: To keep you logged in to your account
- Security: To protect your account from unauthorized access
- Preferences: To remember your settings and customization choices
- Functionality: To enable core features of the Service
- Analytics: To understand how visitors interact with our Service
3. Types of Cookies We Use
3.1 Essential Cookies
These cookies are strictly necessary for the Service to function properly. They enable core functionality such as security, network management, and account access. You cannot opt out of these cookies.
| Cookie Name | Provider | Purpose | Duration |
|---|---|---|---|
| sb-access-token | Supabase | Authentication session token | Session |
| sb-refresh-token | Supabase | Token for refreshing authentication | Persistent |
| __stripe_mid | Stripe | Fraud prevention and security | 1 year |
| __stripe_sid | Stripe | Session ID for Stripe checkout | Session |
3.2 Functional Cookies
These cookies enable enhanced functionality and personalization. They remember choices you make to give you a better experience.
| Cookie/Storage Key | Purpose | Duration |
|---|---|---|
| zenova-theme | Dark/light mode preference | Persistent |
| timer-state | Timer state persistence (Zustand store) | Persistent |
| sidebar-collapsed | Sidebar state preference | Persistent |
| calendar-view | Preferred calendar view (week/month) | Persistent |
3.3 Analytics Cookies
These cookies help us understand how visitors interact with our Service by collecting and reporting information anonymously.
| Cookie/Service | Provider | Purpose |
|---|---|---|
| Vercel Analytics | Vercel | Anonymous usage metrics and performance monitoring |
| Vercel Speed Insights | Vercel | Web vitals and page performance tracking |
Note: Analytics cookies are only set if you opt in or if required for service operation. We use privacy-focused analytics that do not track you across sites.
4. Third-Party Cookies
Some cookies are placed by third-party services that appear on our pages. We have no control over these cookies. The third-party services we use include:
- Supabase: Authentication and database services
- Stripe: Payment processing
- Vercel: Hosting and analytics
These third parties may use cookies, web beacons, and similar technologies to collect or receive information from our Service. Please review their respective privacy and cookie policies for more information.
5. Managing Cookies
5.1 Browser Settings
Most web browsers allow you to control cookies through their settings preferences. You can typically:
- View cookies stored on your device
- Delete specific cookies or all cookies
- Block third-party cookies
- Block all cookies
- Receive warnings before cookies are placed
Here are links to cookie management instructions for major browsers:
5.2 Impact of Disabling Cookies
Please note that disabling certain cookies will affect the functionality of our Service:
- Disabling essential cookies will prevent you from logging in and using the Service
- Disabling functional cookies will reset your preferences on each visit
- Timer state and in-progress work may not be saved
6. Local Storage and Session Storage
In addition to cookies, we use browser storage technologies:
- Local Storage: Used to persist timer state, theme preferences, and UI state across browser sessions. Data remains until explicitly cleared.
- Session Storage: Used for temporary data that should not persist beyond the current browser session. Data is cleared when the tab or window is closed.
These storage mechanisms contain similar information to cookies but can store larger amounts of data. They are subject to the same privacy controls as cookies.
7. Do Not Track Signals
Some browsers have a "Do Not Track" (DNT) feature that sends a signal to websites indicating you do not want to be tracked. Currently, there is no industry standard for how to respond to DNT signals. We do not currently respond to DNT signals, but we respect your privacy choices as described in this policy.
8. Changes to This Cookie Policy
We may update this Cookie Policy from time to time to reflect changes in technology, regulation, or our business practices. We will notify you of significant changes by:
- Posting the updated policy on this page
- Updating the "Last updated" date
- Displaying a notice in the Service for material changes
We encourage you to review this policy periodically to stay informed about our use of cookies.
9. Cookie Consent
By using our Service, you consent to the use of cookies as described in this policy. Essential cookies are necessary for the Service to function and cannot be disabled. For non-essential cookies, we will request your consent where required by law.
If you are located in the European Economic Area (EEA), United Kingdom, or other jurisdictions requiring explicit consent, we will display a cookie banner on your first visit allowing you to manage your preferences.
10. Contact Us
If you have any questions about our use of cookies or this Cookie Policy, please contact us:
- Email: privacy@zenova.sh
- Subject line: Cookie Policy Question
Quick Summary
- Essential cookies are required for login and security. These cannot be disabled.
- Functional cookies remember your preferences like dark mode and timer state.
- Analytics cookies help us improve the Service anonymously.