Privacy Policy

Who is responsible

Crown Calculator (https://crowncalculator.com) is run by Abdul Manan, who is the data controller for this site. Contact: nitrolabs@gmail.com.

What this site collects

• No accounts or forms. You don't sign up, and the site doesn't ask for your name, email or any other personal details.
• Calculations stay in your browser. Values you type are processed on your device. On some pages the value is added to the page address (for example ?v=25&from=c) so you can bookmark or share it; that address is then sent to the server like any other page request.
• Server logs. The hosting provider automatically records technical request data such as IP address, browser type, the page requested, the referring page and the time. These logs are used only to keep the site running and secure, and are kept for a limited period set by the provider.
• Theme preference. If you switch between light and dark mode, your choice is saved in your browser's local storage. It never leaves your device.
• Analytics. The site does not currently use analytics tools. If that changes, this policy will be updated before they are switched on.

Advertising and cookies

This site shows ads served by Google AdSense. Advertising is what keeps the calculators free.

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the Internet.
• You may opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalised advertising at aboutads.info or, in Europe, youronlinechoices.eu.
• Google explains how it uses information from sites that show its ads in How Google uses information from sites or apps that use our services.

Ads may still appear if you opt out of personalisation. They will be based on things like the page you are reading rather than your browsing history.

Your consent choices

If you visit from the European Economic Area, the UK or Switzerland, a consent message from a Google-certified consent management platform asks for your choice before personalised ads or advertising cookies are used. Visitors from US states with privacy laws are offered the option to opt out of the sale or sharing of personal information for advertising. You can review or change your choice at any time with the Privacy settings link in the footer of every page.

The legal basis for advertising cookies, where consent is required, is your consent. The legal basis for server logs is the legitimate interest in running a secure, working website.

Your rights

Depending on where you live, you may have the right to access, correct or delete personal data about you, to restrict or object to its use, to data portability, and to withdraw consent at any time. Residents of California and other US states with privacy laws have the right to know what personal information is collected, to request its deletion or correction, to opt out of its sale or sharing for targeted advertising, and not to be discriminated against for using these rights.

This site itself holds almost no personal data. Advertising data is processed by Google; you can manage it through the links above. For any request, email nitrolabs@gmail.com. If you are in the EEA or UK, you can also complain to your local data protection authority.

International transfers

Google and the hosting provider may process data in countries other than your own, including the United States, under their own safeguards such as standard contractual clauses.

Children

This site is not directed at children under 13 (or under 16 in the EEA), and does not knowingly collect personal data from them.

Changes to this policy

When this policy changes, the “Last updated” date at the top changes too. Significant changes will be noted on this page. See also the terms of use.

Contact

Questions about this policy or your data: nitrolabs@gmail.com, or use the contact page.