Privacy Policy

Overview

TI-84 Calculator ("we," "us," "the site") is a free, browser-based calculator. This policy explains what information the site collects, how it's used, and the choices you have.

Data stored locally in your browser

Your calculation history, stored variables, saved graphs, saved programs, and theme preference are saved using your browser's local storage, on your own device. This data is never transmitted to us or to any server — we simply have no access to it. Clearing your browser data, or using the Memory tab's reset option, removes it permanently.

Cookies and advertising

We may use Google AdSense to display ads on this site. Google and its partners may use cookies — including the DoubleClick cookie — to serve ads based on your visits to this site and other sites on the internet. You can opt out of personalized advertising by visiting Google's Ad Settings, and you can learn more about how Google uses data from partner sites at policies.google.com/technologies/partner-sites.

Third-party vendors, including Google, may also use cookies to serve ads based on your prior visits to this or other websites. Users may opt out of the use of cookies for personalized advertising by visiting www.aboutads.info/choices.

Server and analytics logs

Like most websites, our hosting provider automatically logs standard technical information for every request — such as IP address, browser type, and pages visited — for security and diagnostic purposes. We may also use privacy-respecting analytics to understand aggregate traffic patterns. None of this is tied to an account, since the site doesn't have one.

Children's privacy

This site is a general-audience educational tool and does not knowingly collect personal information from anyone, including children under 13. Because no account or personal information is required to use the calculator, none is collected from any user regardless of age.

Third-party links

This site may link to external resources (such as Texas Instruments' official pages). We aren't responsible for the privacy practices of sites we don't operate — check their own policies before sharing information with them.

Changes to this policy

We may update this policy from time to time. Changes take effect as soon as they're posted here, and the "last updated" date at the top will reflect the most recent revision.

Contact

Questions about this policy? Reach out via the Contact Us page.