Privacy Policy
MathInSite is built to be genuinely private. You don't need an account, we don't ask for personal information, and we don't sell or share your data. This page explains exactly what is and isn't collected when you use the site.
Last updated: September 2026
The Short Version
- No account, login, or sign-up is ever required.
- We don't collect names, emails, or any personal information through the calculators.
- The numbers you type into a calculator are processed in your browser — they are not sent to or stored on our servers.
- We use one privacy-friendly analytics tool to count page views and understand which calculators are popular.
- We never sell, rent, or share your data with advertisers.
What We Collect
We use Clicky, a privacy-focused analytics service, to understand how the site is used — for example, how many people visit each calculator and which pages are most helpful. Clicky records general, non-identifying information such as page views, approximate region (country/city level), referring website, browser type, and device type. This helps us decide which tools to improve and what to build next.
We do not collect your name, email address, or any personal identifiers, and we have no way to tie analytics data back to you as an individual.
Your Calculations Stay in Your Browser
Every calculator runs entirely in your own browser. The values you enter — your numbers, equations, and data sets — are used to compute results on your device and are never transmitted to us or stored on our servers.
Cookies and Local Storage
We use your browser's local storage to remember one small preference: whether you've chosen light or dark mode. This setting stays on your device and is never sent anywhere. Our analytics provider, Clicky, may set cookies to measure visits; you can block these through your browser settings without affecting the calculators.
Advertising
MathInSite may display advertisements served through Google AdSense to help support the cost of running the site. When active, Google and its advertising partners may use cookies and similar technologies to serve ads, including ads based on your visits to this and other websites. You can review or adjust how Google personalizes ads for you at Google Ads Settings, or opt out of personalized advertising more broadly at aboutads.info. Turning off personalization does not stop ads from showing — it just means the ads you see may be less tailored to you.
Affiliate Links
Some pages may include affiliate links — for example, to a graphing calculator model relevant to a topic on that page. If you click one of these links and make a purchase, MathInSite may earn a small commission at no extra cost to you. We only link to products we believe are genuinely useful for the math you're studying, and affiliate relationships never influence which calculators we build or the accuracy of our content. Any page containing an affiliate link discloses it on that page.
Third-Party Services
MathInSite relies on a small number of third-party services to function:
- Clicky — privacy-friendly website analytics. See Clicky's privacy and terms.
- Google Fonts — provides the typefaces used on the site. When fonts load, your browser contacts Google's servers, which may receive your IP address as part of that request. See Google's Privacy Policy.
- Google AdSense (when active) — serves ads and may set cookies for ad personalization and measurement. See how Google uses data in advertising.
- Amazon Associates (when active) — affiliate links to relevant products. See Amazon's Privacy Notice.
What We Don't Do
- We don't sell your personal data — to anyone, ever.
- We don't require or store accounts, passwords, or payment information.
- We don't let advertising or affiliate relationships change what a calculator computes or what a page teaches.
Children's Privacy
MathInSite is an educational resource intended to be safe for students of all ages. We do not knowingly collect personal information from anyone, including children. Because no account is required and no personal data is requested, the site can be used without sharing identifying information.
Changes to This Policy
If we update this policy, we'll revise the "Last updated" date above. Significant changes will be reflected clearly on this page.
Contact
Questions about privacy? Email us at contact@mathinsite.com and we'll be glad to help.