Privacy Policy

Last updated: 2026-04-10

1. Data Controller

Crealize LLC (合同会社)
Representative Member: Yi Chen
Room 402, Han-Ei Building, 3-8-4 Ryusen, Taito-ku, Tokyo 110-0012, Japan
Corporate Number (TAX ID): 8011003020200
Privacy Officer: Yi Chen (Representative Member)
Contact: privacy@jfinds.jp

2. Information We Collect

  • On Google / LINE login: email address (Google only), display name, profile picture URL
  • Automatically: access logs (IP address, User-Agent), language and region (Cloudflare Geo-IP)
  • User actions: watchlist items, price alert settings, Web Push subscriptions

3. How We Use Your Information

  • Login and session management
  • Sending price drop notifications
  • Service quality improvement and analytics
  • Security and fraud prevention

4. Third-Party Disclosure

We do not sell or share personal information except in the following cases:

  • As required by law (court orders, regulatory requests, etc.)
  • Clicking affiliate links may send referral information to external services (e.g., Rakuten Ichiba)

5. Sub-processors & Cloud Services

We use the following sub-processors under Data Processing Agreements:

  • Cloudflare, Inc. (CDN, Workers, D1 database) — USA / Global
  • Resend, Inc. (email delivery) — USA
  • Google LLC (login authentication) — USA

6. Cookies

We use only a single HttpOnly session cookie for login state. No advertising or tracking cookies are used.

7. Data Retention

  • User sessions: 30 days
  • Price alert settings: for the lifetime of your account
  • Notification log: 30 days
  • Access logs: 90 days
  • After account deletion: physically deleted within 30 days

8. Your Rights

You may request access to, correction of, or deletion of your personal data at any time via account settings or by contacting privacy@jfinds.jp. We will respond within a reasonable period after verifying your identity.

9. Security

All connections use TLS 1.3. Session tokens are stored as SHA-256 hashes. The service runs on Cloudflare's edge infrastructure.

10. Children

We do not knowingly collect personal information from children under 13.

11. Changes to This Policy

We may update this policy at any time. Material changes will be announced on this page. Continued use of the Service constitutes acceptance of the revised policy.

12. Complaints

For privacy concerns, please contact us at privacy@jfinds.jp first. If unresolved, you may contact the Personal Information Protection Commission of Japan (www.ppc.go.jp).