This Privacy Policy explains what information Calcti84.com (“we”, “us”, or “our”) collects when you use https://calcti84.com (the “Site”), and what we do with it.
You can use every calculator on the Site without creating an account and without giving us any personal information.
Information we collect
Information you send us. If you email us, we receive your email address and whatever you write in the message.
Log information. Like most websites, the server that hosts the Site automatically records basic details of each visit, such as IP address, browser type and version, the pages visited, and the date and time.
Calculator data. Your calculations and saved work are stored in your own browser on your own device. They are not sent to us, and you can remove them at any time by clearing your browser data for the Site.
What we do not collect
The Site has no user accounts and takes no payments. We do not ask for your name, address, phone number or payment details.
How we use information
- To run the Site, keep it secure and fix problems
- To understand in general terms how the Site is used
- To reply when you contact us
We do not sell your personal information.
Cookies and advertising
A cookie is a small piece of information that a website stores in your browser and that your browser sends back on later visits.
The Site may show advertisements through Google AdSense. Google, as a third-party vendor, uses cookies, including the DoubleClick cookie, to show ads based on your visits to this Site and other sites on the internet.
You can turn off personalised advertising in Google Ads Settings. You can also set your browser to refuse cookies, although some parts of the Site may then not work properly.
Who we share information with
We share information only with the service providers that help us run the Site, such as our hosting and advertising providers, and when the law requires us to, for example in response to a court order.
Your rights
Depending on where you live, data protection law may give you these rights:
- The right to access
- The right to rectification
- The right to erasure
- The right to restrict processing
- The right to object to processing
- The right to data portability
- The right to complain to a supervisory authority
- The right to withdraw consent
To use any of these rights, contact us at admin@calcti84.com
Children’s privacy
Many of our visitors are students. The Site can be used without giving us any personal information, and we do not knowingly collect personal information from children.
If you are a parent or guardian and believe your child has sent us personal information, please contact us and we will delete it.
Links to other websites
The Site contains links to other websites. When you follow one of these links you move to another website, and its privacy policy may differ from ours.
Changes to this policy
If we change this Privacy Policy, we will post the new version on this page and update the date below.
Contact Us
If you have any questions about this Privacy Policy, get in touch with us at admin@calcti84.com
Last Updated: October 6, 2026