Privacy Policy for Kanji Master

Last Updated: November 6, 2025

Introduction

This Privacy Policy describes how Kanji Master collects, uses, and protects your information when you use our mobile application. The app is intended for users aged 13 years and older. By using this app, you confirm that you are at least 13 years old.

Information We Collect

Information Stored Locally on Your Device

• Learning Progress: Kanji learning progress, quiz scores, and statistics
• Preferences: App settings, themes, and customization choices
• Study Data: Bookmarked kanji, review schedules, mistake tracking
• Achievements: Unlocked achievements and progress milestones

Important: This data is stored only on your device and is not transmitted to our servers.

Information Collected by Third Parties

• We use Google AdMob, which may collect device identifiers (including Advertising ID) and IP address for ads, analytics, and security purposes
• Data may be shared with Google and advertising partners

How We Use Your Information

• ✅ Track learning progress
• ✅ Provide personalized review schedules
• ✅ Save app preferences
• ✅ Display achievements and statistics
• ✅ Improve overall learning experience

Third-Party Services

Google AdMob (Advertising)

We use Google AdMob to display ads. AdMob may collect:

• Device information (device type, OS version)
• Advertising ID
• IP address
• App usage data

AdMob Privacy Policy: https://policies.google.com/privacy

• You can opt out of personalized ads in your device settings
• You can reset your Advertising ID at any time

Google Gemini AI (AI Tutor Feature)

When using the AI Tutor feature:

• User questions are sent to Google Gemini API for processing
• Conversations are not stored by us
• Google may process data according to its privacy policy

Google Privacy Policy: https://policies.google.com/privacy

What We Send:

• Kanji-related questions only
• Minimal context for accurate responses

What We Do Not Send:

• Personal information
• Device identifiers
• Other app data

Data Storage and Security

Local Storage

• All learning data is stored locally on the device
• No cloud backups are used
• Uninstalling the app removes all local data

Security Measures

• Industry-standard local data encryption (Capacitor Preferences API)
• No external data transmission except AI Tutor queries
• Regular updates to maintain security

Children’s Privacy

Kanji Master is not intended for children under the age of 13. We do not knowingly allow users under 13 to use the app.

We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has used this app, please contact us and we will take appropriate action.

Your Rights and Choices

• Access: View your data within the app
• Delete: Clear data via settings or uninstall the app
• Control: Manage app preferences
• Opt-Out: Disable personalized ads in device settings

Data Retention

• Local Data: Stored until deleted or app is uninstalled
• AI Queries: Not stored by us
• Advertising Data: Managed and retained by AdMob

Updates to This Policy

We may update this Privacy Policy from time to time. Updates will be posted within the app and on this page. Continued use of the app means acceptance of the revised policy.

Contact Us

Email: nyeinthura57@gmail.com

Permissions Explained

• Internet Access: Required for ads and AI Tutor
• Network State: Used only to check connectivity

No other permissions are requested.

Compliance

• ✅ GDPR
• ✅ CCPA
• ✅ COPPA (App not directed at children under 13)
• ✅ Google Play Developer Policies