Last updated: November 12, 2026
This Privacy Policy explains what information CentMath collects when you use centmath.com, how that information is used, and the choices you have. CentMath is operated by Manoj Meena, who is responsible for the handling of personal information described here.
Summary
- Calculator inputs are processed in your browser. They are never sent to CentMath or stored.
- CentMath does not use advertising, analytics or tracking cookies at this time.
- Personal information is collected only when you choose to send a message through the contact form.
- CentMath does not sell, rent or share personal information for marketing.
Information You Enter in Calculators
All calculations run locally in your web browser using JavaScript. The figures you enter, such as ad spend, prices or revenue, are not transmitted to any server, saved to an account or logged. Closing or refreshing the page clears them.
Information You Send Through the Contact Form
If you submit the contact form, CentMath receives your name, email address, the topic you choose and your message. The form is delivered by Web3Forms, a third-party form processing service, which forwards the message by email. This information is used only to read and reply to your message and to fix any problem you report.
Messages are kept in the CentMath email inbox for as long as needed to handle your request and keep a record of corrections. You can ask for your message to be deleted at any time.
Hosting and Technical Data
CentMath is hosted on Cloudflare. To deliver pages and protect the site from abuse, Cloudflare processes standard technical data for each request, such as IP address, browser type, the page requested and the time of the request. CentMath does not use this data to identify visitors. Cloudflare handles it under its own privacy policy.
Cookies, Advertising and Analytics
CentMath does not currently set cookies, run analytics tools or display advertising. If any of these are added in the future, this policy will be updated before they go live. The update will name each service, explain what it collects, and describe how to opt out.
Your Rights
Depending on where you live, you may have the right to access, correct or delete personal information held about you, or to object to its use. Because CentMath only holds information you send through the contact form, you can make any of these requests by writing through the same form. Requests are answered within 30 days.
Children's Privacy
CentMath is a general audience website for business and finance topics. It is not directed at children under 13, and it does not knowingly collect personal information from them. If you believe a child has sent personal information, please get in touch so it can be deleted.
External Links
Pages on CentMath link to outside sources, such as government sites and platform documentation. Those sites have their own privacy practices, which CentMath does not control.
Changes to This Policy
This policy will be updated if CentMath's practices change. The "Last updated" date at the top shows when the current version took effect.
Contact
For any privacy question or request, use the contact page and choose "Something else" as the topic.