Privacy Policy

Last updated: January 15, 2026 · CalcGo | calcgo.org

1. Introduction

CalcGo ("Site", "we") respects your privacy and is committed to protecting your personal information. This policy explains what data we collect, how we use it, and what your rights are.

2. Information We Collect

2.1 Data We Do NOT Collect

All CalcGo calculations run entirely in your browser. We do not store, transmit, or see the data you enter into calculators (salary, age, weight, etc.).

2.2 Automatically Collected Data

Google Analytics (GA4): Anonymous usage data — pages viewed, time on site, device type, country. Full IP addresses are not stored.
Cookies: Language preference cookie (qc-locale) and theme cookie (qc-theme). No advertising cookies.
Vercel Logs: Basic technical logs (anonymized IP, browser type) for error diagnosis.

3. Google Analytics

We use Google Analytics 4 to analyze site traffic. Google Analytics collects anonymous data about how the site is used. You can opt out via the Google Analytics Opt-out Extension.

4. Google AdSense

We may display advertisements through Google AdSense. Google may collect data to serve personalized ads. See Google's Privacy Policy.

5. Third-Party Sharing

We do not sell, trade, or transfer personal information to third parties, except Google Analytics and Google AdSense as described above.

6. Data Storage

The site is hosted on Vercel Inc., with servers primarily in the EU and US. Analytics data is stored on Google servers.

7. Your Rights (GDPR / CCPA)

Right to access your data
Right to deletion
Right to restrict processing
Right to data portability
Right to object to processing
California residents: right to opt out of data sale (we do not sell data)

To exercise these rights, contact us: supportcalcgo@gmail.com

8. Children

This site is not intended for children under 13. We do not knowingly collect data from children.

9. Policy Changes

We may update this policy periodically. Material changes will be posted on this page with an updated date.