This site collects the minimum data necessary to operate, never sells personal data, and performs every calculator's math directly in your browser rather than on a server.
What this site does not do: it does not require an account to use any calculator, it does not sell personal data to third parties, and it does not transmit the numbers you type into a calculator to any server. Every formula on this site, from the homepage's exponential growth calculator to the regression and logistic growth tools, runs entirely as JavaScript in your own browser.
Cookies and local storage: a small number of cookies or browser local-storage entries may be used for basic site functionality, such as remembering a display preference. These are not used to build an advertising profile.
Analytics: aggregated, anonymized usage data, such as which pages are visited and in what general region, may be collected to understand which calculators are most useful and where the site's content should expand next. This data is not linked to an individual visitor's identity.
Contact form: if you submit the contact form, the name, email, and message you provide are used solely to respond to your inquiry and are not shared with third parties or used for unrelated marketing.
Changes to this policy: this policy may be updated from time to time to reflect changes in how the site operates. Continued use of the site after an update constitutes acceptance of the revised policy.
Questions about this policy can be sent through the contact page.
This site uses only the minimal cookies or local storage needed for basic site functionality and anonymized analytics, and does not use cookies to build an advertising profile. No personal data is required to use any calculator. Every calculation happens directly in your browser.
Aggregated, anonymized analytics such as page views and general geographic region may be collected to understand which calculators are most useful. This data is not linked to your name, email, or any other personally identifying information.
No personal data collected through this site is sold to third parties. Any data collected is used solely to operate and improve the site itself.
No, every calculator on this site computes its results entirely in your own browser using JavaScript, and the numbers you type are never transmitted to a server. Refreshing or closing the page discards them immediately.
Use the contact page to ask any question about how this site handles data.