Cookie Policy

Cookie Policy

Last Updated: January 30, 2026

1. What Are Cookies

Cookies are small text files that are placed on your device when you visit our website traceoverlay.com. They are widely used to make websites work more efficiently and to provide information to website owners.

2. How We Use Cookies

We use cookies for the following purposes:

2.1 Essential Cookies (Required)

These cookies are necessary for the website to function and cannot be switched off.

  • Authentication: Remember your login status
  • Security: Protect against fraud and ensure security
  • Preferences: Remember your app settings

Duration: Session-based or up to 1 year

Cookie Name Purpose Duration
auth_session Maintains your login session Session
csrf_token Security token to prevent cross-site attacks Session

2.2 Analytics Cookies

We use Umami, a privacy-focused analytics tool that does not use cookies for tracking. Umami:

  • Does not collect personal data
  • Does not use cookies
  • Is GDPR compliant by design
  • Only collects anonymous, aggregated data

2.3 Functionality Cookies

These cookies enable enhanced functionality and personalization.

  • Theme Preference: Remember your light/dark mode choice
  • App Settings: Store your opacity, filter, and grid preferences

Duration: Up to 1 year

Cookie Name Purpose Duration
theme Stores your theme preference 1 year
app_settings Stores your app preferences 1 year

2.4 Marketing Cookies

We do not use marketing or advertising cookies. TraceOverlay does not serve ads or track you for advertising purposes.

3. Third-Party Cookies

3.1 Payment Processing (Stripe)

When you make a payment, Stripe may set cookies for fraud prevention and payment processing.

  • Provider: Stripe
  • Purpose: Secure payment processing and fraud detection
  • Privacy Policy: stripe.com/privacy

3.2 Authentication (Google OAuth)

If you sign in with Google, Google may set cookies for authentication.

4. Managing Cookies

4.1 Browser Settings

You can manage or disable cookies through your browser settings:

  • Chrome: Settings > Privacy and security > Cookies and other site data
  • Firefox: Options > Privacy & Security > Cookies and Site Data
  • Safari: Preferences > Privacy > Manage Website Data
  • Edge: Settings > Cookies and site permissions > Manage cookies

4.2 What Happens If You Disable Cookies

If you disable cookies, some features may not function properly:

  • Login Issues: Unable to stay logged in
  • Settings: Your preferences may not be saved

Essential app functionality (camera, image overlay) will still work.

5. Local Storage

In addition to cookies, we use browser local storage to store:

  • App State: Your current overlay settings (opacity, position, rotation)
  • Saved Images: Reference images are stored locally via IndexedDB
  • User Preferences: Theme and app configuration

Important: Your images are stored only on your device and are never uploaded to our servers.

6. Updates to This Cookie Policy

We may update this Cookie Policy from time to time. The updated version will be indicated by a revised "Last Updated" date.

7. GDPR and Cookie Consent

7.1 Your Rights (GDPR)

If you are located in the European Economic Area (EEA), you have the right to:

  • Withdraw Consent: Remove your consent for non-essential cookies at any time
  • Access: Request information about cookies we use
  • Object: Object to certain types of cookies

7.2 Consent Requirements

Under GDPR and the ePrivacy Directive:

  • Essential cookies do not require consent
  • We do not use analytics cookies that require consent (Umami is cookieless)
  • We do not use marketing cookies

8. CCPA and Cookie Information

8.1 California Residents

We do not sell your personal information. We do not use cookies for targeted advertising or to share your data with third parties for their marketing purposes.

You can opt-out of any data sharing by visiting: Do Not Sell My Info

9. Contact Us

If you have questions about this Cookie Policy, please contact us:


Cookie Policy Version: 1.0 Effective Date: January 30, 2026