1. Introduction

Sudoku247 ("we," "our," or "us") operates the website sudoku247.app. This Privacy Policy explains how we collect, use, and protect information when you visit our site. By using Sudoku247, you agree to the practices described here.

If you have questions, contact us at: sudoku247app@gmail.com

2. Information We Collect

We do not require account registration and do not directly collect personal information such as your name, email address, or payment details. However, the third-party services we use may automatically collect certain data when you visit our site:

Usage data: pages visited, time spent, browser type, device type, and general geographic location (country/region), collected via Google Analytics.
Advertising data: browsing behavior used to serve relevant ads, collected via Google AdSense cookies and similar technologies.
Puzzle progress: your current puzzle state is saved locally in your browser's localStorage and never transmitted to our servers.

3. Cookies

Sudoku247 uses cookies through our third-party service providers. These include:

Google Analytics cookies — used to understand how visitors interact with our site (pages viewed, session duration, referral source). These are analytics cookies, not advertising cookies.
Google AdSense cookies — used by Google to serve personalized or non-personalized advertisements. Google may use cookies to measure ad effectiveness and show ads based on your previous visits to our site and other sites on the web.

You can control or disable cookies through your browser settings. Disabling cookies may affect the functionality of some features.

4. Google AdSense and Advertising

We use Google AdSense to display advertisements on some pages of this site. Google uses cookies to serve ads based on your prior visits to our website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to our site and/or other sites on the Internet.

You may opt out of personalized advertising by visiting Google's Ads Settings. You can also opt out at aboutads.info. For more information on how Google uses data when you use our site, visit Google's Privacy & Terms.

5. Google Analytics

We use Google Analytics 4 (GA4) to understand how visitors use our site. GA4 collects anonymized data including pages viewed, session duration, device type, and approximate geographic location. This data is used solely to improve the site's content and user experience.

You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

6. How We Use Information

The data collected through third-party services is used to:

Understand site usage patterns and improve content
Display relevant advertisements to support the free operation of the site
Analyze which pages and features are most useful to visitors

We do not sell, rent, or share your personal information with third parties for their own marketing purposes.

7. Children's Privacy

Sudoku247 is a general-audience website suitable for all ages. We do not knowingly collect personal information from children under the age of 13. If you believe we have inadvertently collected information from a child, please contact us and we will delete it promptly.

Note: Google's advertising policies prohibit personalized advertising based on sensitive user categories, including age (children). Our AdSense implementation complies with these policies.

8. Data Security

Sudoku247 is a static website. We do not operate servers that store your personal data. Puzzle progress is stored only in your browser's localStorage, on your own device. All site traffic is served over HTTPS.

9. Your Rights

Depending on your location, you may have rights regarding your personal data, including the right to access, correct, or delete data held about you. Since we do not directly collect or store personal data, most requests should be directed to Google (for Analytics and AdSense data). For any other requests, contact us at sudoku247app@gmail.com.

10. Third-Party Links

Our site may contain links to external websites. We are not responsible for the privacy practices of those sites and encourage you to review their privacy policies.

11. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with a revised "Last updated" date. We encourage you to review this policy periodically.

12. Contact Us

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

Email: sudoku247app@gmail.com
Website: sudoku247.app