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Privacy Policy

How we collect, use, and protect your data.

Effective date: April 14, 2026

1. Information We Collect

Information You Provide

  • Waitlist signup: When you join our waitlist, we collect your email address and optionally your phone number.
  • Account registration: When you create an account, we collect your email address and a password. Your password is stored as a cryptographic hash and is never stored in plain text.

Information Collected Automatically

  • Analytics data: We use Google Analytics (GA4) to collect standard usage data such as page views, session duration, approximate geographic location, device type, and referral source.
  • Affiliate link clicks: When you click an eBay listing link on our platform, the click may be tracked through the eBay Partner Network for affiliate attribution purposes.
  • Cookies: We use cookies strictly for authentication and session management via Supabase. We do not use advertising or tracking cookies beyond those set by Google Analytics.

Information We Do Not Collect

We do not collect payment information, government-issued IDs, or sensitive personal data. The market price data displayed on our platform is sourced from publicly available marketplace APIs and does not involve any user data.

2. How We Use Your Information

  • To provide and maintain our service, including authenticating your account and managing your session.
  • To communicate with you about product updates, new features, and deal alerts (if you signed up).
  • To analyze usage patterns and improve the performance, usability, and content of our platform.
  • To generate affiliate revenue through the eBay Partner Network when you click through to eBay listings.

3. Third-Party Services

We use the following third-party services that may collect or process data:

We do not sell, rent, or trade your personal information to any third party.

4. Cookies

  • Authentication cookies (Supabase): Essential cookies that maintain your login session. Strictly necessary and cannot be disabled.
  • Analytics cookies (Google Analytics): Anonymized usage statistics. You can opt out via the Google Analytics Opt-out Add-on.

5. Data Retention

We retain your account information for as long as your account is active. Waitlist emails are retained until the waitlist closes or you request removal. If you delete your account, we remove your personal data within 30 days, except where required by law.

6. Your Rights

Depending on your jurisdiction, you may have the right to:

  • Access a copy of the personal data we hold about you
  • Correct inaccurate or incomplete data
  • Delete your personal data
  • Export a machine-readable copy of your data
  • Opt out of marketing communications at any time

To exercise any of these rights, contact us at the email below.

7. Data Security

We take reasonable measures to protect your information, including encrypted connections (HTTPS), secure password hashing, and database access controls. No method of transmission is 100% secure, and we cannot guarantee absolute security.

8. Children's Privacy

Our services are not directed to individuals under 13. We do not knowingly collect personal information from children under 13. If we become aware of such data, we will delete it promptly.

9. Changes to This Policy

We may update this Privacy Policy from time to time. When we make changes, we will update the effective date and, where appropriate, notify you by email.

Contact

Questions about your data or this policy?

Brands of Babel LLC, operating as Kanto Research·hello@kantoresearch.com