Privacy Policy

Last updated: September 2026

What we collect

StudyTools is designed to run entirely in your browser. The numbers you enter into calculators are processed on your device and are not stored on our servers. We do not require accounts and do not collect names, email addresses or personal identifiers during normal use.

Like most websites, our hosting and analytics providers may automatically log technical data such as your IP address, browser type (user agent) and page views. This data is used to keep the site secure and to understand how visitors use it in aggregate.

Third-party services

We may use third-party services, including Google AdSense for advertising and standard analytics tools, which may place cookies or collect anonymous usage data. Each service operates under its own privacy policy.

Cookies

Cookies are small files stored on your device. We use or may use: essential cookies to keep the site working; analytics cookies to understand aggregate usage; and advertising cookies, including Google’s DoubleClick cookie, to serve ads relevant to your interests.

Advertising and personalized ads

Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website or other websites.

Google’s use of advertising cookies enables it and its partners to serve ads to your users based on their visit to your sites and/or other sites on the Internet.

Users may opt out of personalized advertising by visiting Ads Settings: https://www.google.com/settings/ads.

You can also opt out of a third-party vendor’s use of cookies for personalized advertising by visiting https://www.aboutads.info.

To learn more about how Google uses information from sites that use its services, see How Google uses information from sites or apps that use our services.

Your control

You can clear or block cookies in your browser settings at any time. You can also disable personalized advertising using the opt-out links above. Note that the site still works fully if you disable ads.

Data retention

We do not retain calculator inputs. Logged technical data is kept only as long as needed for security and normal operation.

Changes to this policy

We may update this policy from time to time. Material changes will be reflected by updating the date at the top.

Contact

Questions about this policy? Reach us through the contact page or at hello@studycalcpro.com.