Privacy Policy

Last updated: June 21, 2026

Overview

CalcSumly (calcsumly.com) is a free, static website. We do not require accounts, collect form submissions, or store any personal information on our servers. This policy explains what data third-party services may collect when you visit.

Data we collect directly

None. The calculators on this site run entirely in your browser. Numbers you enter are never sent to any server. We do not use login systems, comment forms, or contact forms that collect personally identifiable information.

Cookies and third-party advertising

CalcSumly displays advertisements through Google AdSense. Google uses cookies — including the DoubleClick cookie — to serve ads based on your prior visits to this site and other sites on the internet. These cookies allow Google and its partners to serve ads to you based on your visit to CalcSumly and/or other sites on the Internet.

You may opt out of personalized advertising by visiting Google's Ads Settings. You can also opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.

For more information about how Google uses data when you use our site, see How Google uses data when you use our partners' sites or apps.

Analytics

We use Google Analytics 4 to understand aggregate traffic patterns — which pages are visited, how long visitors stay, and which devices and countries they use. Google Analytics collects data such as your approximate location, device type, and pages viewed via cookies and similar technologies. This data is aggregated and anonymized; we cannot identify individual visitors. You can opt out using the Google Analytics Opt-out Browser Add-on.

Local storage

The calculators on CalcSumlydo not store any data in your browser's local storage or session storage. All calculations are performed in memory and discarded when you close or refresh the page.

Third-party links

Some pages link to external sites such as IRS.gov and SSA.gov for source citations. Once you leave CalcSumly, this Privacy Policy no longer applies. We encourage you to review the privacy policies of any external sites you visit.

Children's privacy

CalcSumly is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided personal information through this site, please contact us so we can take appropriate action.

Changes to this policy

We may update this Privacy Policy from time to time. The "Last updated" date at the top of this page reflects when the most recent changes were made. Continued use of CalcSumly after changes are posted constitutes your acceptance of the revised policy.

Contact

If you have questions about this Privacy Policy, please contact us at privacy@calcsumly.com.