Cookie Policy

1. What Are Cookies?

Cookies are small text files stored on your device when you visit websites. They help websites remember your preferences, authenticate your identity, and analyze how you use the site.

Sentio uses cookies and similar tracking technologies to provide and improve our Service. This Cookie Policy explains what cookies we use and why.

2. Types of Cookies We Use

2.1 Essential Cookies (Strictly Necessary)

These cookies are required for the Service to function. You cannot opt out of these cookies without breaking core functionality.

Legal Basis: Legitimate interest (service functionality)

2.2 Functional Cookies (Preferences)

These cookies remember your preferences and settings to improve your experience.

Legal Basis: Consent (you can disable these in settings)

2.3 Analytics Cookies (Performance)

These cookies help us understand how users interact with our Service so we can improve it.

Legal Basis: Consent (you can opt out via Do Not Track or browser settings)

Note: We do NOT use Google Analytics or other third-party analytics that share data with advertisers.

2.4 Marketing Cookies (Advertising)

We Do NOT Use Marketing Cookies: Sentio does not use advertising or marketing cookies. We do not track you across websites or sell your data to advertisers.

3. Third-Party Cookies

Some features require third-party cookies from our service providers:

3.1 Stripe (Payment Processing)

• Purpose: Secure payment processing, fraud detection
• Cookies: __stripe_mid, __stripe_sid
• Duration: 1 year / 30 minutes
• Privacy: Stripe Privacy Policy

3.2 Supabase (Authentication & Database)

• Purpose: Secure authentication, session management
• Cookies: sb-* cookies
• Duration: Varies by cookie (session to 30 days)
• Privacy: Supabase Privacy Policy

3.3 Vercel (Hosting)

• Purpose: CDN routing, performance optimization
• Cookies: __vercel_* cookies
• Duration: Session
• Privacy: Vercel Privacy Policy

4. How to Control Cookies

4.1 Browser Settings

You can control cookies through your browser settings:

• Chrome: Settings → Privacy and security → Cookies and other site data
• Firefox: Settings → Privacy & Security → Cookies and Site Data
• Safari: Preferences → Privacy → Cookies and website data
• Edge: Settings → Privacy, search, and services → Cookies

4.2 Do Not Track (DNT)

We respect the Do Not Track browser signal. When DNT is enabled, we will not set analytics cookies.

4.3 Cookie Preferences

You can manage cookie preferences in your account settings:

• Essential Cookies: Cannot be disabled (required for service)
• Functional Cookies: Can be disabled (may affect experience)
• Analytics Cookies: Can be disabled (no functional impact)

4.4 Opt-Out Links

• Vercel Analytics: Automatically respects DNT signals
• Network Advertising Initiative: NAI Opt-Out

5. Impact of Disabling Cookies

If you disable cookies, some features may not work:

5.1 Essential Cookies Disabled

Service Will Not Work: You cannot use Sentio without essential cookies. These are required for:

• Login and authentication
• Session management
• Security protections (CSRF)
• Subscription and payment processing

5.2 Functional Cookies Disabled

You will lose:

• Language preferences (resets to English)
• Theme preferences (resets to default)
• Dashboard customizations

5.3 Analytics Cookies Disabled

No impact on functionality. We simply won't track:

• Page views and navigation patterns
• Performance metrics
• Anonymous usage statistics

6. Other Tracking Technologies

6.1 Local Storage

We use browser local storage to store non-sensitive data like UI preferences. You can clear local storage via browser developer tools.

6.2 Session Storage

We use session storage for temporary data that clears when you close the browser tab. This includes form data and analysis progress.

6.3 Pixels and Beacons

We Do NOT Use: Tracking pixels, web beacons, or invisible images for tracking.

6.4 Fingerprinting

We Do NOT Use: Browser fingerprinting techniques to track users across sessions or devices.

7. Mobile Apps (Future)

If we launch mobile apps in the future, they will use:

• Device IDs: For authentication and analytics
• Push Notifications: With your explicit permission
• App Tracking Transparency: Compliance with iOS/Android requirements

We will update this policy before launching mobile apps.

8. International Users

8.1 EU Users (GDPR)

• Consent: We obtain consent before setting non-essential cookies
• Granular Control: You can accept/reject cookies by category
• Cookie Banner: Displayed on first visit for EU users
• Withdrawal: You can withdraw consent at any time

8.2 California Users (CCPA)

• No Sale: We do not sell personal information or cookie data
• Opt-Out: You can opt out of analytics via browser settings
• Privacy Rights: See our Privacy Policy

9. Children's Privacy

Our Service is not intended for children under 13 (or 16 in the EU). We do not knowingly set cookies on devices used by children. If you believe a child has accessed our Service, contact us at [TODO: setup info@sentio.fit].

10. Updates to This Policy

We may update this Cookie Policy to reflect changes in our practices or legal requirements. Updates will be posted with a new "Last Updated" date.

Material changes will be communicated via:

• Email notification to registered users
• Banner notification in the Service
• Updated cookie consent banner (for EU users)

11. Contact Us

For questions about cookies or this policy:

• Email: [TODO: setup info@sentio.fit]
• Support: [TODO: setup info@sentio.fit]
• Data Protection Officer: [TODO: setup info@sentio.fit]

Response Time: We aim to respond within 72 hours.

12. Summary