**Privacy Policy**

This Privacy Policy describes how Yang Zhirong ("Yang Zhirong," "we," "us," or "our") collects, uses, and shares information in connection with your use of our Sudoku mobile application (the "Service").

By using the Service, you agree to the collection and use of information in accordance with this policy.

**1. Information We Collect**

We aim to collect as little personal information as possible to provide and improve our Service.

*   **Information You Provide Directly:**

    *   We currently **do not** require you to provide any personally identifiable information (such as name or email address) to use our Sudoku app.

*   **Information Collected Automatically (Non-Personally Identifiable Information):**

    When you use our Service, we or our third-party service providers may automatically collect certain information, which may include:

    *   **Device Information:** Such as your device model, operating system version, unique device identifiers (e.g., Android Advertising ID), and mobile network information.

    *   **Usage Data:** Information about how you use the Service, such as game progress, features used, game settings, session duration, and crash reports. This data is typically aggregated and anonymized.

    *   **Log Information:** When you use our Service or view content provided by us, we may automatically collect and store certain information in server logs. This may include your IP address.

**2. How We Use Your Information**

We use the information we collect for various purposes, including:

*   **To Provide and Maintain the Service:** To operate and maintain the Sudoku app, including saving your game progress locally on your device.

*   **To Improve the Service:** To understand how users interact with our app, identify areas for improvement, fix bugs, and enhance user experience.

*   **To Personalize Your Experience:** Such as remembering your preferences or settings within the app.

*   **[IF YOU USE ADS - e.g., AdMob]: To Serve Advertisements:** We may use third-party advertising partners (e.g., Google AdMob) to display advertisements within the app. These partners may collect information (like your Advertising ID) to serve personalized ads.

*   **[IF YOU USE ANALYTICS - e.g., Firebase]: For Analytics:** We may use third-party analytics services (e.g., Google Analytics for Firebase) to monitor and analyze the use of our Service.

**3. Sharing Your Information**

We do not sell your personal information. We may share your information in the following limited circumstances:

*   **Third-Party Service Providers:** We may share non-personally identifiable information with third-party vendors, service providers, contractors, or agents who perform services on our behalf, such as:

    *   **Advertising Partners:** [e.g., Google AdMob - if you use it] These partners may collect data as described in their own privacy policies to serve ads.

    *   **Analytics Providers:** [e.g., Google Analytics for Firebase - if you use it] These providers help us understand app usage.

    *   You can find more information about their privacy practices by visiting their respective websites. For example:

        *   Google Play Services: https://policies.google.com/privacy

        *   Google AdMob (if used): https://support.google.com/admob/answer/6128543

        *   Google Analytics for Firebase (if used): https://firebase.google.com/policies/analytics

*   **Legal Requirements:** We may disclose your information if required to do so by law or in response to valid requests by public authorities (e.g., a court or a government agency).

*   **Business Transfers:** If Yang Zhirong is involved in a merger, acquisition, or asset sale, your information may be transferred.

**4. Data Security**

We value your trust in providing us your information and strive to use commercially acceptable means of protecting it. However, please remember that no method of transmission over the internet or method of electronic storage is 100% secure and reliable, and we cannot guarantee its absolute security. Game data like progress and settings are typically stored locally on your device.

**5. Data Retention**

We will retain collected information for as long as necessary to provide the Service and fulfill the purposes outlined in this Privacy Policy, or as required by law. Information collected by third-party services is subject to their respective retention policies.

**6. Children's Privacy**

Our Service does not address anyone under the age of 13 ("Children"). We do not knowingly collect personally identifiable information from children under 13. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us. If we become aware that we have collected personal information from a child under 13 without verification of parental consent, we will take steps to remove that information from our servers or services.

**7. Your Choices and Rights**

*   **Advertising:** You may be able to opt-out of personalized advertising by adjusting your device settings (e.g., "Opt out of Ads Personalization" on Android devices).

*   **App Permissions:** You can manage app permissions through your device settings.

**8. Links to Other Sites**

Our Service may contain links to other sites that are not operated by us. If you click on a third-party link, you will be directed to that third party's site. We strongly advise you to review the Privacy Policy of every site you visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

**9. Changes to This Privacy Policy**

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page (your Google Sites page where this policy will be hosted). You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

**10. Contact Us**

If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us:

Yang Zhirong

Email: [chenrunhua666@gmail.com @example.com]

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This Privacy Policy page was created for the Sudoku app by Yang Zhirong