Privacy Policy

Effective Date: January 1, 2026

1. Scope

This Privacy Policy applies to mobile and desktop applications ("Apps") developed and published by kaifeng sang ("we," "us," or "our"). It also applies to our developer website where this policy is published.

Some Apps may have additional privacy disclosures inside the App or on the store listing. If there is a conflict, the App-specific disclosure will take precedence for that App.

Our website may store your language preference locally in your browser (for example, using local storage) to remember your selection.

2. Information We Collect

2.1 Information You Provide

• Account information : such as name, email address, or other identifiers when you create an account, sign in, or contact us.
• User content : content you create, upload, import, scan, or store in the Apps (for example, photos, files, notes, or text).
• Support communications : information you send to us for support, feedback, or bug reports (including attachments you choose to provide).

2.2 Automatically Collected Information

• Device and app information : device model, operating system version, language, time zone, app version, and similar technical data.
• Usage data : interactions with features, approximate session duration, and other diagnostic events.
• Diagnostics : crash reports, error logs, and performance data to improve stability and fix bugs.

2.3 Device Permissions and Features

Depending on the App and your device, the App may request access to certain device features (for example, camera, photos/media library, microphone, notifications, or location). These permissions are requested only when needed for the feature you use, and you can control them in your device settings.

2.4 Information From Third Parties

We may receive information from app stores (such as subscription status) and from service providers we use (such as analytics or advertising partners) in accordance with their policies.

3. How We Use Your Information

• Provide, maintain, and improve our Apps
• Analyze usage patterns to enhance user experience
• Respond to your inquiries and provide customer support
• Send important updates, security alerts, and support messages
• Detect, prevent, and address technical issues or fraudulent activity
• Comply with legal obligations

4. How We Share Your Information

We may share information in the following situations:

• With service providers that help us operate the Apps (for example, crash reporting, analytics, customer support, or infrastructure).
• With advertising partners if an App shows ads (for example, to display ads, measure ad performance, and prevent fraud).
• For legal reasons (for example, to comply with lawful requests, enforce our terms, or protect rights, safety, and security).
• As part of a business transfer (for example, merger, acquisition, or sale of assets), where permitted by law.
• With your consent or at your direction.

We do not sell your personal information.

5. Third-Party Services

5.1 Advertising (if applicable)

Some Apps may display advertisements through third-party networks (for example, Google AdMob). These partners may collect device identifiers, IP address, approximate location, and ad interaction data.

You can control ad personalization through your device settings. Learn more at Google's Privacy Policy .

5.2 Analytics and Diagnostics

We may use analytics and diagnostics services to understand App usage and improve performance. These services may collect device and event data.

Third-party services operate under their own privacy policies, and we are not responsible for their practices.

6. Data Retention

We keep personal information only for as long as necessary for the purposes described in this policy, unless a longer retention period is required or permitted by law.

7. Data Security

We implement appropriate technical and organizational measures designed to protect your information. However, no security method is perfect, and we cannot guarantee absolute security.

8. Your Choices and Rights

Depending on your location and the App you use, you may have rights and choices such as:

• Access and receive a copy of your personal data
• Correct inaccurate or incomplete data
• Delete your personal data (where applicable)
• Restrict or object to certain processing
• Data portability (where applicable)
• Withdraw consent where processing is based on consent

To request access, deletion, or other actions, contact us using the details below.

9. International Transfers

Your information may be processed in countries other than where you live, including where our service providers operate. We take steps to protect your information consistent with this policy.

10. Children's Privacy

Our Apps are not directed to children under 13 (or the minimum age required in your country). We do not knowingly collect personal information from children. If you believe a child provided personal information, please contact us.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will post the updated policy on this page and update the effective date above.

12. Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us at:
Email: sangkl@163.com