Privacy Policy

Last updated: June 12, 2026

Okabe Sensei respects your privacy. This Privacy Policy explains how we collect, use, store, and protect information when you use okabesensei.com, including our Japanese worksheet tools, downloadable PDFs, email forms, and related services.

1. Information We Collect

We may collect the following types of information.

Information You Provide Directly

This may include:

  • Email address, if you sign up for updates or notifications.
  • Text entered into worksheet generation forms.
  • Messages or inquiries sent through contact forms.
  • Feedback, support requests, or survey responses.

Information Collected Automatically

When you visit the website, we may automatically collect technical information such as:

  • IP address.
  • Browser type and version.
  • Device type.
  • Pages visited.
  • Referring page.
  • Approximate location based on IP address.
  • Date and time of visit.
  • Usage and performance data.

Generated Worksheet Data

When you use a worksheet generator, we may process the text you submit in order to generate a PDF, preview, or downloadable file.

Unless otherwise stated, submitted worksheet text is used to provide the requested service and improve reliability, security, and performance.

2. How We Use Information

We may use information to:

  • Provide worksheet generation and PDF download functionality.
  • Improve website performance, design, and usability.
  • Understand which resources are useful to learners, teachers, tutors, and other users.
  • Respond to support requests or messages.
  • Send updates if you have signed up to receive them.
  • Prevent abuse, spam, excessive automated requests, or security issues.
  • Comply with legal obligations.

3. Email Signups

If you sign up to be notified about new features, worksheets, or the custom kanji worksheet generator, we will use your email address to send those updates.

You can unsubscribe at any time by using the unsubscribe link in an email or by contacting us directly.

4. Cookies and Analytics

Okabe Sensei may use cookies or similar technologies to understand website usage, improve performance, remember preferences, and measure traffic.

We may use analytics tools such as Google Analytics, Cloudflare analytics, or similar services. These tools may collect information about your device, browser, pages visited, and interactions with the website.

You can control cookies through your browser settings.

5. Third-Party Services

Okabe Sensei may use third-party service providers for:

  • Website hosting.
  • PDF generation.
  • Analytics.
  • Email collection.
  • Form submissions.
  • Security and spam prevention.
  • Error monitoring.
  • Content delivery and caching.

These providers may process information only as needed to provide their services to us.

Examples may include:

  • Cloudflare.
  • Google Forms or Google Sheets.
  • Google Analytics.
  • Email newsletter providers.
  • Hosting or backend API providers.

This list should be updated to reflect the actual services used by Okabe Sensei.

6. How We Share Information

We do not sell personal information.

We may share information only when:

  • It is necessary to operate the website.
  • A third-party provider helps us deliver the service.
  • We need to comply with law, regulation, legal process, or enforceable governmental request.
  • We need to protect the rights, safety, or security of Okabe Sensei, users, or the public.
  • We are involved in a business transfer, merger, acquisition, or similar transaction.

7. Data Retention

We keep information only as long as reasonably necessary for the purposes described in this Privacy Policy.

Email signup information is kept until you unsubscribe or request deletion.

Worksheet input, logs, and generated files may be retained temporarily for service delivery, troubleshooting, abuse prevention, analytics, or security, unless otherwise stated.

Successful generated worksheet PDF responses may be cached for up to 7 days.

8. Children’s Privacy

Okabe Sensei is not directed to children and is not intended for use by children without appropriate adult supervision.

The website is designed for Japanese language learners, teachers, tutors, parents, and other adults who create or use educational materials.

We do not knowingly collect personal information from children under the age required by applicable law. If you believe that a child has provided personal information to Okabe Sensei without appropriate consent, please contact us and we will take reasonable steps to delete that information.

Parents, guardians, teachers, and other adults are responsible for reviewing any materials they create, download, print, or share with learners.

9. International Users

Okabe Sensei may be accessed from different countries. By using the website, you understand that your information may be processed in countries where our service providers operate.

Depending on your location, you may have rights to access, correct, delete, restrict, or object to the processing of your personal information.

10. Your Rights and Choices

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

  • Request access to personal information we hold about you.
  • Request correction of inaccurate information.
  • Request deletion of personal information.
  • Withdraw consent for email communications.
  • Object to or restrict certain processing.
  • Request a copy of your information.
  • Opt out of certain analytics or marketing cookies.

To make a request, contact us at:

Email: privacy@okabesensei.com

11. Security

We use reasonable technical and organizational measures to protect information. However, no website, server, or internet transmission is completely secure.

You use Okabe Sensei at your own risk.

Okabe Sensei may link to third-party websites or resources. We are not responsible for the privacy practices, content, or policies of those third-party websites.

13. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. The updated version will be posted on this page with a revised “Last updated” date.

14. Contact

For questions or requests about this Privacy Policy, contact:

Okabe Sensei

Email: privacy@okabesensei.com