Math Tools

This Privacy Policy describes how your personal information is collected, used, and shared when you use Math Tools (the "App").

1. INFORMATION WE COLLECT

1.1 Information You Provide

When you use the App, we may collect information that you voluntarily provide to us, including but not limited to:

• Contact information, such as your email address when you contact our support team
• Information you provide when you respond to surveys or feedback requests
• Any other information you choose to provide to us

1.2 Information Collected Automatically

When you use the App, we may automatically collect certain information about your device and usage of the App, including:

• Device information, such as your device model, operating system version, unique device identifiers, and mobile network information
• Usage data, such as the features you use, the actions you take within the App, and the time and duration of your usage
• Crash reports and performance data to help us identify and fix issues with the App

Please note that all calculation data and personal information processed by the App remains on your device due to our local-first architecture. We do not collect or store your calculation data on our servers.

1.3 Information from Third Parties

We may receive information about you from third parties, such as:

• App Store platforms when you download or purchase the App
• Analytics providers to help us understand how users interact with the App

2. HOW WE USE YOUR INFORMATION

We use the information we collect for the following purposes:

• To provide, maintain, and improve the App and its features
• To understand how users interact with the App and to develop new features
• To respond to your inquiries and provide customer support
• To detect, prevent, and address technical issues and security vulnerabilities
• To comply with applicable laws and regulations

3. HOW WE SHARE YOUR INFORMATION

We do not share your personal information with third parties except in the following circumstances:

• With service providers who assist us in operating the App and providing our services, subject to strict confidentiality obligations
• When required by law, such as to comply with a subpoena or similar legal process
• To protect our rights, privacy, safety, or property, and that of our users and the public
• In connection with a merger, acquisition, or sale of all or a portion of our assets

We do not sell your personal information to third parties for marketing purposes.

4. DATA RETENTION

We retain your personal information for as long as necessary to fulfill the purposes for which it was collected, including to comply with legal obligations, resolve disputes, and enforce our agreements. If you contact us with a support request, we may retain your communication and contact information for as long as necessary to provide support and to improve our services.

Since all calculation data is processed locally on your device, you can delete this data at any time by clearing the App's data or uninstalling the App.

5. YOUR RIGHTS AND CHOICES

You have certain rights regarding your personal information, including:

• The right to access the personal information we hold about you
• The right to request correction of inaccurate personal information
• The right to request deletion of your personal information, subject to certain legal exceptions
• The right to object to or restrict our processing of your personal information

To exercise these rights, please contact us at jisuangongju4056@163.com. We will respond to your request within a reasonable timeframe.

You can also control the information collected by adjusting your device settings, such as disabling certain permissions or limiting ad tracking.

6. SECURITY

We take reasonable measures to protect your personal information from unauthorized access, use, or disclosure. These measures include technical, administrative, and physical safeguards designed to protect against unauthorized access to our systems. However, no method of transmission over the internet or electronic storage is completely secure, and we cannot guarantee absolute security.

The App's local-first architecture provides an additional layer of security by processing data directly on your device, reducing the risk of data breaches associated with cloud storage.

7. CHILDREN'S PRIVACY

The App is not intended for use by children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13 without parental consent, we will take steps to delete such information.

8. CHANGES TO THIS PRIVACY POLICY

We may update this Privacy Policy from time to time. When we do, we will revise the "Last Updated" date at the top of this policy. We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information.

9. CONTACT US

If you have any questions or concerns about this Privacy Policy or our privacy practices, please contact us at:

jisuangongju4056@163.com

10. LOCAL-FIRST ARCHITECTURE AND DATA PRIVACY

Math Tools operates on a local-first architecture, which means all core processing and data storage occurs directly on your device. This design provides significant privacy benefits:

• Your calculation data never leaves your device unless you explicitly choose to share it
• No internet connection is required for basic functionality, reducing data transmission risks
• You maintain full control over your data at all times
• Sensitive information such as financial calculations or personal data remains private and secure

This local-first approach ensures that your most sensitive information never enters our servers or any third-party systems, providing you with enhanced privacy and security.

11. THIRD-PARTY SERVICES

The App may contain links to third-party websites or services that are not owned or controlled by us. This Privacy Policy does not apply to such third-party services. We are not responsible for the privacy practices of these third parties, and we encourage you to review their privacy policies before using their services.

12. AI-POWERED FEATURES AND PRIVACY

Math Tools includes AI-powered calculation assistance features. These features operate locally on your device to provide intelligent assistance without sending your data to external servers. This ensures that your calculations and problems remain private while still benefiting from AI capabilities.

The AI models used in the App are designed to process information locally, maintaining your privacy while providing helpful assistance with complex calculations and problem-solving.

13. DATA MINIMIZATION

We follow the principle of data minimization, collecting only the information necessary to provide and improve the App. Since most processing occurs locally on your device, we collect minimal information compared to cloud-based applications.

14. CROSS-BORDER DATA TRANSFERS

If you use the App outside of the country where your information was collected, your information may be transferred to, stored, and processed in other countries. By using the App, you consent to the transfer of your information to countries outside your country of residence, which may have different data protection laws than your country.