Privacy Policy

This page explains how TI 84 Calculator Online handles information when you use our website at ti84calculators.org.

Last updated: July 16, 2026

The short version

You do not need an account to use this site. We do not ask for your name, email, or payment details. Calculator work happens in your browser. We try to keep things simple and private.

Information we do not collect

We do not require sign-up. We do not sell personal data. We do not collect the math expressions you type into the calculators for advertising or user profiling.

Information stored on your device

Some settings stay on your own device so the site feels better next time you visit. For example, the TI-84 calculator may save your zoom level in local storage. Emulator files may also be cached by your browser after the first load so the calculator opens faster later. That data stays in your browser unless you clear it yourself.

Automatic server information

Like most websites, our hosting provider may receive basic technical data when you visit, such as your IP address, browser type, the page you requested, and the time of the request. This kind of log data is used to run the site, keep it secure, and fix problems. We do not use it to build marketing profiles.

Cookies

We do not use advertising cookies. Your browser may still store normal site files and preferences needed for the calculators to work. You can clear cookies and site data anytime in your browser settings.

Third-party software

Our graphing and scientific calculators use open source libraries such as function-plot (MIT License) and mathjs (Apache License 2.0). Those libraries run in your browser as part of this site. License details are listed on the Open Source Licenses page.

Children's privacy

This site is meant as a school and study tool. We do not knowingly collect personal information from children. If you believe a child has shared personal information with us, contact us and we will look into it.

Changes to this policy

We may update this page if the site changes. When we do, we will change the "Last updated" date at the top. Continued use of the site after an update means you accept the revised policy.

For more information, see our Terms and Conditions, Disclaimer, and About pages.