The short version
- Your calculator inputs stay on your device. Every calculation runs in your web browser. The numbers you type are not sent to our servers or stored by us.
- No accounts. We don’t ask for your name, email, address or financial account details to use any tool.
- Advertising. We show ads served by Google AdSense, which uses cookies and similar technologies as described below.
- Your choices. You can control personalized advertising and cookies through the consent message, Google’s Ads Settings and your browser.
Who we are
This website (www.calcvera.net) is operated by Creative Developer (“Calcvera”, “we”, “us”). You can contact us about privacy at [email protected].
Information we collect
Information you enter into calculators
Calculations are performed by JavaScript running in your browser. We do not receive, log or store the values you enter. If you use Copy link to results, your inputs are encoded in the part of the link after the “#” symbol. Browsers do not send that part of a link to web servers; anyone you share the link with can see the values in it.
Information stored on your device
If you switch between light and dark mode, your choice is saved in your browser’s local storage so the site remembers it. This preference never leaves your device, and you can clear it at any time in your browser settings.
Technical information
Like virtually all websites, our hosting and content-delivery providers automatically process technical information needed to deliver pages securely — such as your IP address, browser type, the page requested and the time of the request. This information is used for security, abuse prevention and reliability, and is retained only as long as our providers need it for those purposes.
Information you send us
If you email us, we receive your email address and the contents of your message. We use it only to respond and to improve the site, and we don’t add you to any mailing list.
Advertising and cookies
We use Google AdSense to display advertising, which keeps our calculators free. Google and its partners use cookies and similar technologies to serve and measure ads:
- Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website or other websites.
- Google’s use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our site and/or other sites on the Internet.
- You may opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors’ use of cookies for personalized advertising at www.aboutads.info/choices or, in Europe, www.youronlinechoices.eu.
- Learn more about how Google uses information from sites that use its services at policies.google.com/technologies/partner-sites.
If you opt out of personalized ads, you will still see ads, but they will be based on general factors such as the page you are viewing rather than your interests. For details on the specific cookies used, see our cookie policy.
Consent for visitors in the EEA, UK and Switzerland
Visitors from the European Economic Area, the United Kingdom and Switzerland are shown a consent message, provided through a Google-certified consent management platform that supports the IAB Transparency and Consent Framework. Ads are personalized only if you consent. You can change your choices at any time using the privacy settings link displayed by the consent message.
Your rights in U.S. states
Residents of certain U.S. states, including California, have rights under state privacy laws — for example, to know what personal information is processed, to request deletion, and to opt out of the “sale” or “sharing” of personal information for targeted advertising. Because we don’t collect calculator inputs or maintain user accounts, we hold very little personal information about you. Where required, a “Do Not Sell or Share My Personal Information” option is provided through Google’s privacy messaging, and you can also opt out of personalized ads using the links above. To make a request, email [email protected].
Rights under the GDPR and UK GDPR
If you are in the EEA or UK, you have the right to access, correct, delete or restrict processing of your personal data, to object to processing, and to data portability, as well as the right to complain to your local data protection authority. The legal basis for advertising cookies is your consent; the legal basis for technical information processed to deliver the site securely is our legitimate interest in operating a secure, reliable website.
Children’s privacy
Calcvera is intended for adults and is not directed to children under 13 (or under 16 in some jurisdictions). We do not knowingly collect personal information from children.
Links to other websites
Our pages link to government agencies and other external sites for reference. We aren’t responsible for their privacy practices; please review their policies.
Security
The site is served only over encrypted HTTPS connections. Because we don’t collect your calculator inputs or create accounts, there is very little personal data to protect in the first place.
Changes to this policy
We may update this policy when our practices or legal requirements change. The “last updated” date at the top shows the most recent revision. Significant changes will be highlighted on this page.
Contact
Questions about this policy? Email [email protected] or use our contact page.