Privacy Policy

Last updated: 2026-09-15

Overview

CalcStack ("we", "us") operates this website. This policy explains what information we handle and how. The short version: calculations run entirely in your browser and we do not collect the numbers you enter.

Information we collect

Calculator inputs. All values you enter are processed locally in your browser and are never sent to us or stored.

Usage data. Like most websites, our hosting provider may log standard technical information (IP address, browser type, pages visited) for security and analytics purposes.

Cookies and advertising

We may display advertising served by third parties, including Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.

You may opt out of personalized advertising by visiting Google Ads Settings. You can also manage cookies through your browser settings; disabling cookies may affect some site functionality.

Third-party links

This site may link to external websites. We are not responsible for the privacy practices of those sites.

Changes

We may update this policy from time to time. Changes will be posted on this page with an updated date.

Contact

Questions about this policy: hello@calcstack.dev.