Privacy Policy

Last updated: 7/13/2026

Language

This document is available in multiple languages for your convenience. In the event of any discrepancy or inconsistency between the English version and any translated version, the English version shall prevail and be considered the authoritative text.

Introduction

Welcome to Sudojo. We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our Sudoku learning application.

Information We Collect

Information Provided by You

• Account information (email address, name)
• Game progress and statistics
• Preferences and settings
• Payment information (processed securely by our payment provider)

Information Collected Automatically

• Device and browser information
• IP address and location data
• Usage patterns and analytics
• Game performance metrics

How We Use Your Information

We use the information we collect to:

• Provide and improve our Sudoku learning experience
• Track your progress and personalize difficulty levels
• Process subscriptions and payments
• Send important updates about the service
• Analyze usage patterns to enhance our techniques and puzzles

Information Sharing

We may share your information in the following circumstances:

• With service providers who assist in our operations
• When required by law or legal process
• To protect our rights and safety
• With your consent

Data Security

We implement appropriate security measures:

• Encryption of data in transit and at rest
• Regular security assessments
• Access controls and authentication
• Secure cloud infrastructure

Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. Your game progress is stored to enable seamless learning across sessions. You can request deletion of your account and associated data at any time.

Your Privacy Rights

You have the right to:

• Access your personal information
• Correct inaccurate data
• Request deletion of your data
• Export your game progress
• Opt out of marketing communications

International Data Transfers

Your information may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place for such transfers.

Children's Privacy

Our service is designed for users of all ages. We do not knowingly collect personal information from children under 13 without parental consent.

Cookies and Local Storage

We use essential cookies and local storage to maintain your session, save your game progress, and remember your preferences. We do not use third-party tracking cookies for advertising purposes.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

Contact Us

If you have any questions about this Privacy Policy, please contact us: