Privacy Policy

Calculator Data

All calculations on CalcTray run entirely in the browser. No input data is sent to any server, stored in any database, or shared with any third party. The numbers entered into a calculator stay on the device. No accounts or personal information are required to use any calculator on the site.

Analytics

CalcTray uses Google Analytics 4 to understand how visitors use the site. This service collects anonymous usage data including pages visited, time spent on each page, browser type, device type, and general geographic region (country or city level, not street address). Google Analytics uses cookies to distinguish unique users and track sessions. No personally identifiable information is collected through analytics.

Users who prefer not to be tracked by Google Analytics can install the Google Analytics Opt-out Browser Add-on.

Advertising

CalcTray displays advertisements through Google AdSense to support free operation of the site. Google AdSense may use cookies to serve ads based on a visitor's prior visits to CalcTray and other websites. These cookies allow ad networks to build an interest profile and show relevant advertisements.

Users can opt out of personalized advertising by visiting Google Ads Settings. Users in the European Economic Area can also manage ad personalization through the EU user consent page.

Cookies

CalcTray itself does not set any cookies. Third-party services used on the site (Google Analytics and Google AdSense) may set cookies on a visitor's device. These cookies are governed by Google's respective privacy policies.

CalcTray uses localStorage for non-essential features such as remembering recently used calculators. localStorage is not a cookie and is never transmitted to any server. The data remains on the device and can be cleared through the browser's settings at any time.

Third-Party Links

The site contains links to external websites. CalcTray is not responsible for the privacy practices or content of other sites. Visitors are encouraged to review the privacy policies of any external sites they visit.

Children's Privacy

CalcTray is not directed at children under 13. No personal information is knowingly collected from children. If a parent or guardian becomes aware that a child has provided personal information, they should contact CalcTray through the contact page, and that information will be removed.

Changes to This Policy

This privacy policy may be updated from time to time. Changes are posted on this page with an updated effective date. Continued use of CalcTray after changes are posted constitutes acceptance of the revised policy.

Contact

For questions about this privacy policy, visit the contact page.