By design, the Service requires no account or registration, and most values you enter (amounts, dates, units, etc.) are processed entirely within your browser and are never transmitted to or stored on our servers.

However, the following information may be collected for operation, analytics, and advertising purposes:

• Automatically collected data: IP address, browser type, pages visited, access time, cookies and similar technology identifiers
• Information you voluntarily provide through the Contact form (name, email, message)
• Non-identifying advertising identifiers provided by services such as Google AdSense

• Providing and optimizing the calculator Service
• Analyzing usage statistics and improving content
• Displaying personalized ads (Google AdSense) and measuring ad performance
• Responding to inquiries and providing customer support
• Complying with laws and preventing abuse

We use cookies to improve the Service and to serve advertisements. Key third-party services include:

• Google Analytics: collection of non-identifying usage statistics
• Google AdSense: delivery of personalized ads and use of advertising cookies

You can refuse cookies through your browser settings and manage personalized ads via Google Ads Settings. Refusing cookies may limit certain features.

We delete collected personal information without delay once the purpose is fulfilled. Information submitted through the Contact form is deleted within a reasonable period (typically one year) after the inquiry is resolved, except where retention is required by law.

We do not knowingly collect personal information from children under the age of 14. Parents or guardians who believe their child's information has been collected may request deletion through our contact channels.

Through analytics and advertising services provided by Google, data may be transferred to and processed in regions outside your country (e.g., the United States), in which case the privacy policies and standard contractual terms of those services apply.

We apply industry-standard security measures to protect personal information. Because no internet-based service can be absolutely secure, we also ask users to help protect their information, for example by keeping browsers up to date.

You may exercise rights to access, correct, delete, or restrict the processing of your personal information at any time. Contact us through the channel below and we will respond promptly.

• EU residents: rights under the GDPR, including access, rectification, and the right to be forgotten
• Korea residents: rights under the Personal Information Protection Act

This Policy may be revised to reflect changes in law or the Service. Any changes will be announced through a notice on the website and take effect from the announced date.

For any privacy-related questions, please contact us at:

privacy@seriescalc.com