Cookie Policy
Last updated:
1. What Are Cookies
Cookies are small text files stored on your device when you visit a website. We also use similar browser storage technologies such as localStorage and sessionStorage. This policy explains what we use, why, and how you can manage it.
2. Strictly Necessary Cookies
These cookies are essential for the app to work. They keep you signed in and secure your account. You cannot opt out of these while using the service.
| Cookie name | Provider | Purpose | Duration |
|---|---|---|---|
| sb-*-auth-token | Supabase | Keeps you signed in between page loads | Session / up to 1 week |
| sb-*-auth-token-code-verifier | Supabase | One-time token used during Google OAuth sign-in (PKCE flow) | Cleared after sign-in |
3. Performance Cookies
We use Vercel Speed Insights to measure page load times and site reliability. This helps us keep the app fast. No personally identifiable information is collected.
| Cookie name | Provider | Purpose | Duration |
|---|---|---|---|
| va-* / _vercel_insights | Vercel | Measures page performance and Core Web Vitals — no personal data | Session |
4. Browser Storage (localStorage)
We store a small number of preference values in your browser's localStorage. These never leave your device and are not sent to our servers.
| Key | Purpose |
|---|---|
| theme | Remembers your chosen theme (light / dark / system) |
| workspace | Remembers whether you are viewing personal or household data |
| cookie_consent | Records that you have acknowledged this cookie notice |
5. What We Don't Use
We do not use advertising cookies, social media tracking pixels, or any third-party marketing trackers.
We do not sell or share cookie data with any third parties for commercial purposes.
6. Contact
If you have questions about how we use cookies, contact us at support@the-spreadsheet.com.