Privacy Policy

Last updated: 2026-08-23

This Privacy Policy explains what information CalcMonde (https://calcmonde.com) collects when you visit the site, why, and what choices you have. We have written it in plain language on purpose — no legal filler, no vague "may share with partners" clauses.

The short version

Calculators run entirely in your browser. The numbers you type into a calculator are never sent to our server, never stored, and never seen by us. We collect data in exactly three places: the contact form, the newsletter signup, and Google Analytics. That's the whole list.

Calculators: nothing is collected

Every calculator on this site runs as JavaScript in your own browser. When you enter a number and press "Calculate," the calculation happens on your device — the values never travel to our server or to any third party. We have no record of what you calculated, and we could not reconstruct it even if asked to.

Contact form

If you use the contact form, we store the name, email address, and message you submit, so we can read it and reply. This is kept in a private file on our server, accessible only to site administrators — it is never made public, sold, or shared with any third party. We keep contact messages only as long as needed to handle your enquiry; you can ask us to delete a message at any time using the same contact form.

To stop spam, submissions are checked against a short-lived, per-IP rate limit (a handful of messages per hour) and a hidden "honeypot" field that only automated bots fill in. Your IP address is used only for that rate-limit check and is not stored alongside your message or linked to your identity.

If you subscribe to our newsletter, we store your email address and the date you subscribed. We use this list only to send you updates about CalcMonde — we do not sell, rent, or share it with anyone else. Every newsletter email includes an unsubscribe option, and you can also ask us to remove your address via the contact form. The same anti-spam and rate-limiting checks used on the contact form apply here too.

Google Analytics

We use Google Analytics to understand, in aggregate, how visitors use the site — which pages are popular, which calculators people search for, and roughly which country and device visitors come from. Google Analytics sets cookies in your browser to do this and, like any third-party analytics service, some data is processed by Google as part of providing that service. We do not combine Analytics data with anything you submit through the contact form or newsletter, and Analytics never sees the numbers you enter into a calculator.

A cookie notice appears on your first visit. You can also limit or block Analytics yourself: most browsers let you block third-party cookies in their privacy settings, and Google publishes a browser add-on (the Google Analytics Opt-out Browser Add-on) that stops Google Analytics JavaScript from sharing visit information for any site you visit, including this one.

For more detail on how Google itself handles this data, see Google's own Privacy Policy and their page on how Google Analytics uses cookies.

Cookies, in full

Outside of the Google Analytics cookies described above, CalcMonde does not set its own tracking or advertising cookies. See our separate Cookie Policy for the full list of cookies used on this site, their names, purpose, and how long each one lasts.

Your rights

Depending on where you live, you may have rights to access, correct, or delete the personal data we hold about you (from the contact form or newsletter), to object to how it's used, or to ask for a copy of it. To exercise any of these, use the contact form — we will respond as promptly as we reasonably can.

Children

This site is not directed at children, and we do not knowingly collect personal data from children. If you believe a child has submitted personal data to us, contact us and we will remove it.

Changes to this policy

If we change what we collect or how we use it, we will update this page and change the "Last updated" date above. We encourage you to check back occasionally.

Data retention periods

We keep contact-form messages only for as long as needed to handle your enquiry, typically no more than a few months, after which they are deleted unless you have an ongoing conversation with us. Newsletter subscriber records are kept for as long as you remain subscribed and are removed promptly after you unsubscribe or request removal. Google Analytics data is retained according to Google's own default retention settings for our account, which caps at 26 months; we do not extend this. We do not keep backups of calculator inputs, because none are ever collected in the first place.

Questions

If anything here is unclear, or you want to exercise any of the rights above, use the contact page — that reaches the people who maintain this site. You can also reach us directly by email at info@calcmonde.com.