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Privacy Policy

Effective date: 2026-03-05

This Privacy Policy explains how Haku Tool (the "Service") collects, uses, stores, and discloses information in connection with calculators and related web tools, including ad-supported features.

1. Information We Collect

  • You can use the Service without creating an account.
  • We may receive technical logs from hosting/CDN providers, such as IP address, user-agent, request time, referrer, and error logs.
  • We may store limited browser-side preferences such as language selection (for example, NEXT_LOCALE) using local storage or similar technologies.
  • If you contact us, we may process your email address and message content to respond to your request.

2. How We Use Information

  • To operate, secure, and improve the Service.
  • To detect abuse, troubleshoot errors, and maintain reliability.
  • To display and measure advertising performance.
  • To respond to support, legal, and policy-related inquiries.

3. Cookies, Similar Technologies, and AdSense

  • The Service may display advertising, including Google AdSense and other third-party ad technologies.
  • Third-party vendors, including Google, may use cookies or similar identifiers to serve and measure ads based on visits to this and other websites.
  • You can manage ad personalization using Google Ads Settings (adssettings.google.com) and opt-out resources such as www.aboutads.info.
  • Where required by law, we may present consent notices or consent-management controls before non-essential ad storage/access.

4. Sharing and Third-Party Processing

  • We may share limited data with infrastructure, analytics, security, and advertising providers only as needed for service operation.
  • We do not sell personal information in exchange for money.
  • Third-party providers process data under their own privacy policies and applicable legal obligations.

5. Data Retention

  • We retain information only for as long as needed for the purposes described in this Policy, legal compliance, dispute resolution, or legitimate security needs.
  • Retention periods for server/network logs may vary by infrastructure provider settings.

6. International Transfers

  • Because service providers may operate globally, information may be processed in countries other than your own.
  • When required, we use reasonable safeguards for cross-border data handling.

7. Your Rights

  • Depending on applicable law, you may have rights to access, correct, delete, restrict, or object to certain processing.
  • You may also have rights related to ad personalization choices and consent withdrawal where applicable.
  • To exercise rights, contact us using the details in the Contact section below.

8. Children's Privacy

  • The Service is not directed to children under 13 (or the age required by local law), and we do not knowingly collect personal information from children.

9. Policy Changes

  • We may update this Privacy Policy from time to time. Material updates will be reflected by changing the effective date on this page.

10. Contact

  • Privacy inquiries: contact@haku-tool.pages.dev