Privacy Policy for Japan Kanji

Last updated: March 21, 2026

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Japan Kanji ("we", "our", "us") provides a Japanese learning app. This policy explains what data we collect, how we use it, and your choices.

1. Data We Collect

Account and identity data

  • Email address (email sign-in or Google Sign-In)
  • Profile name (username, display name)
  • Firebase user ID (UID)

Learning and app data

  • Study and quiz progress
  • JLPT level achievements and quiz history
  • App settings and preferences
  • Recently viewed Kanji history (local storage)

Advertising-related data

  • Advertising identifiers used by AdSense and partners to deliver and measure ads.

2. How We Use Data

  • Provide and manage your account
  • Authenticate sign-in
  • Save and sync learning progress
  • Display and measure ads
  • Improve reliability, security, and support

3. Sharing and Third Parties

We do not sell your personal data.

We use service providers that process data on our behalf, including:

  • Google Firebase (authentication and cloud data storage)
  • Google AdSense (ads delivery and measurement)

4. Data Retention

We keep account and learning data while your account is active, or as needed to provide services, resolve disputes, and enforce agreements.

5. Security

We use reasonable safeguards to protect data. No method of transmission or storage is 100% secure.

6. Account Deletion and Your Rights

You can request account deletion via our web request page: japan-kanji.com/account-deletion

7. Changes to This Policy

We may update this policy from time to time. We will update the "Last updated" date.

8. Contact

For privacy questions or deletion requests, contact: stagsolutions21@gmail.com