Privacy Policy

Last updated: February 26, 2026

CalcOnce ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our website at www.calconce.com (the "Service").

Information We Collect

Information You Provide

Our calculators are designed to work without requiring personal information. Any data you enter into our calculators (such as loan amounts, measurements, or health metrics) is processed entirely in your browser and is not transmitted to or stored on our servers.

If you choose to subscribe to our newsletter, we collect your email address solely for the purpose of sending you calculator tips, updates, and educational content.

Information Collected Automatically

When you visit our website, we may automatically collect certain information, including:

• Device information (browser type, operating system)
• IP address (anonymized for analytics)
• Pages visited and time spent on pages
• Referring website
• General location (country/region level only)

How We Use Your Information

We use the information we collect to:

• Provide and improve our calculator tools
• Analyze website traffic and usage patterns
• Send newsletter updates (if subscribed)
• Display relevant advertisements
• Prevent fraud and ensure website security

Cookies and Tracking Technologies

We use cookies and similar technologies for the following purposes:

Essential Cookies

Required for basic website functionality, such as remembering your theme preference (light/dark mode) and recently used calculators.

Analytics Cookies

We use Google Analytics to understand how visitors interact with our website. Google Analytics collects anonymized data about page views, session duration, and user demographics. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Advertising Cookies

We display advertisements through Google AdSense to support our free calculator tools. Google and its partners may use cookies to serve ads based on your prior visits to this website or other websites. You can opt out of personalized advertising by visiting Google Ads Settings or www.aboutads.info.

Third-Party Services

We use the following third-party services:

• Google Analytics: Website analytics and traffic analysis
• Google AdSense: Display advertising
• Cloudflare: Content delivery and security

Each of these services has its own privacy policy governing the use of your information. We encourage you to review their privacy policies.

Data Retention

Calculator inputs are not stored on our servers. Analytics data is retained for 26 months. Newsletter subscriber information is retained until you unsubscribe.

Your Rights

For All Users

• Access the personal information we hold about you
• Request correction of inaccurate information
• Request deletion of your personal information
• Opt out of marketing communications
• Opt out of personalized advertising

California Residents (CCPA)

Under the California Consumer Privacy Act (CCPA), California residents have additional rights including:

• The right to know what personal information is collected
• The right to know if personal information is sold or disclosed
• The right to opt out of the sale of personal information
• The right to non-discrimination for exercising privacy rights

We do not sell your personal information. To exercise your rights, please contact us at the email address below.

European Residents (GDPR)

If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR), including:

• The right to access your personal data
• The right to rectification
• The right to erasure ("right to be forgotten")
• The right to data portability
• The right to object to processing

Children's Privacy

Our Service is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

Data Security

We implement appropriate technical and organizational measures to protect your information. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

Contact Us

If you have questions about this Privacy Policy or wish to exercise your privacy rights, please contact us at:

Email: privacy@calconce.com