Effective Date: August 25, 2025
Thank you for using CalcMate (hereinafter referred to as "the Application"). We highly value user privacy and the protection of personal information. This Privacy Policy explains how we collect, use, store, and protect your information during your use of the Application. Please read it carefully before use.
I. Information Collection
To provide users with stable and reliable computing services and continuously improve the application experience, the Application may collect the following information:
1. Personal Information (Optional)
When you contact us via email (such as submitting feedback, asking questions, or making suggestions), we may collect your email address:
coresensenet@gmail.com
The Application will not proactively request users to provide sensitive personally identifiable information such as name, ID number, phone number, or address.
2. Device and Usage Information
When you use this application, the following information may be automatically collected:
Device Information: Device model, operating system version, system language, application version number;
Usage Information: Function usage, operation frequency, usage duration;
Log Information: Application crash logs, error messages, and performance data, used for problem analysis and stability improvement.
3. Calculation and Local Data
User calculation data and history performed in the application are stored locally on the user's device by default;
This application does not upload calculation content to servers or share it with third parties.
II. Information Use
The information we collect is used only for the following purposes:
Providing and maintaining CalcMate's core calculation functions;
Improving application performance and user experience;
Analyzing application operation status, fixing bugs, and improving stability;
Responding to user feedback and providing technical support.
This application will not use user data for advertising or any commercial marketing purposes.
III. Children's Privacy (13 years and older)
1. Age Restriction
This application is not intended for children under 13 years of age. If you are under 13 years old, please do not use this application.
2. Protection Measures for Users Aged 13 and Above
For users aged 13 and above, we implement the following privacy protection measures:
Minimize Data Collection: We collect only the minimum information necessary to provide application functionality and performance optimization;
Do Not Collect Sensitive Information: We will not request or store sensitive personal information such as real names, home addresses, or ID card numbers;
Parental Guidance: We recommend that minor users use this application under the supervision and guidance of their parents or guardians;
Data Usage Restrictions: Data from minor users is used only for function implementation and application improvement, and not for advertising tracking or user profiling analysis.
IV. Data Security
We take reasonable technical and management measures to protect user data security, including but not limited to:
Controlling access to data to prevent unauthorized access;
Regularly checking application security to reduce the risk of data leakage;
Data is stored locally on the user's device by default to avoid unnecessary data transfer.
Please understand that although we have made every effort to take security measures, no network or device environment can guarantee absolute security.
V. Privacy Policy Updates
We may update this Privacy Policy from time to time based on application function adjustments, changes in laws and regulations, or business development needs. The updated Privacy Policy will be communicated to users within the app or through other reasonable means, and will take effect from the date of publication.
We recommend that you review this policy periodically to stay informed of the latest updates.
VI. Contact Us
If you have any questions, comments, or complaints regarding this Privacy Policy or personal information protection, please contact us through the following methods:
Contact Email: coresensenet@gmail.com