Privacy Policy

Your privacy is important to us. Learn how we collect, use, and protect your information.

Last updated: December 15, 2024

1. Introduction

Welcome to Sudoku Master ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website (the "Site"). Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not access the site.

We respect your privacy and are committed to protecting your personal data. This privacy policy will inform you about how we look after your personal data when you visit our website and tell you about your privacy rights and how the law protects you.

2. Information We Collect

2.1 Information You Provide Directly

We may collect information that you voluntarily provide to us when you:

  • Contact us through our contact forms or email
  • Report bugs or provide feedback
  • Request support or assistance

2.2 Information Collected Automatically

When you visit our Site, we may automatically collect certain information about your device and usage patterns:

  • Log Data: IP address, browser type, operating system, pages visited, time spent on pages
  • Cookies and Similar Technologies: We use cookies to enhance your experience and analyze site usage
  • Device Information: Device type, screen resolution, browser version

2.3 Game Data

We may collect anonymous game statistics such as:

  • Puzzle completion times
  • Difficulty levels played
  • Game progress and achievements
  • Error patterns (for improving puzzle generation)

3. How We Use Your Information

We use the information we collect for the following purposes:

Website Operation
To provide and maintain our Sudoku game service
Analytics
To understand how users interact with our site and improve user experience
Technical Support
To respond to your inquiries and provide customer support
Security
To protect against fraud, abuse, and security threats
Legal Compliance
To comply with applicable laws and regulations

4. Third-Party Services

We use the following third-party services to enhance our website:

4.1 Cloudflare

We use Cloudflare for content delivery, security, and performance optimization. Cloudflare may collect and process certain information about your visit to our site.

4.2 Plausible Analytics

We use Plausible Analytics to understand how our website is used. Plausible is a privacy-focused analytics service that:

  • Does not use cookies
  • Does not collect personal data
  • Does not track users across websites
  • Provides anonymous, aggregated statistics

For more information about Plausible's privacy practices, please contact us directly.

5. Data Sharing and Disclosure

We do not sell, trade, or otherwise transfer your personal information to third parties except in the following circumstances:

  • Service Providers: We may share information with trusted third-party service providers who assist us in operating our website
  • Legal Requirements: We may disclose information when required by law or to protect our rights
  • Business Transfers: In the event of a merger or acquisition, user information may be transferred

6. Children's Privacy (COPPA Compliance)

Our service is not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

If we discover that we have collected personal information from a child under 13 without parental consent, we will take steps to delete such information from our servers immediately.

6.1 Parental Rights

Parents have the right to:

  • Review their child's personal information
  • Request deletion of their child's personal information
  • Refuse further collection or use of their child's information

7. California Privacy Rights (CCPA Compliance)

If you are a California resident, you have certain rights regarding your personal information under the California Consumer Privacy Act (CCPA):

7.1 Your Rights

  • Right to Know: You have the right to know what personal information we collect, use, and share
  • Right to Delete: You have the right to request deletion of your personal information
  • Right to Opt-Out: You have the right to opt-out of the sale of personal information (we do not sell personal information)
  • Right to Non-Discrimination: We will not discriminate against you for exercising your privacy rights

7.2 Categories of Personal Information We Collect

Identifiers
IP address, device identifiers
Internet Activity
Browsing history, interaction with our website
Geolocation Data
General location based on IP address

7.3 How to Exercise Your Rights

To exercise your California privacy rights, please contact us directly. We will respond to your request within 45 days.

8. Data Security

We implement appropriate technical and organizational security measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. However, no method of transmission over the internet or electronic storage is 100% secure.

8.1 Security Measures

  • SSL/TLS encryption for data transmission
  • Regular security assessments and updates
  • Access controls and authentication
  • Secure data storage and backup procedures

9. Cookies and Tracking Technologies

We use cookies and similar tracking technologies to enhance your experience on our website:

9.1 Types of Cookies We Use

  • Essential Cookies: Necessary for the website to function properly
  • Analytics Cookies: Help us understand how visitors use our website
  • Preference Cookies: Remember your settings and preferences

9.2 Managing Cookies

You can control cookies through your browser settings. However, disabling certain cookies may affect the functionality of our website.

10. International Data Transfers

Your information may be transferred to and processed in countries other than your own. We ensure that such transfers comply with applicable data protection laws and implement appropriate safeguards.

11. Data Retention

We retain your personal information only for as long as necessary to fulfill the purposes outlined in this privacy policy, unless a longer retention period is required or permitted by law.

11.1 Retention Periods

  • Contact Information: 3 years from last contact
  • Analytics Data: 26 months (anonymized)
  • Game Statistics: Indefinitely (anonymized)

12. Changes to This Privacy 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. You are advised to review this privacy policy periodically for any changes.

13. Contact Information

If you have any questions about this privacy policy or our privacy practices, please contact us:

Email: Contact us directly for privacy inquiries

General Support: 18192199493@163.com

Website: This website