Legal
Privacy Policy
Last updated: August 31, 2026
TheOneCalculator (theonecalculator.com) is operated by Enve Solutions, Inc., incorporated in Delaware, United States ("we", "us"). This policy explains what information we collect when you use the site and how it is used.
Information we collect
The calculators on this site run entirely in your browser — the numbers you enter into a calculator are never sent to our servers. Like most websites, we do collect some information automatically:
- Log data: your browser type, device type, pages visited and approximate location (derived from IP address), collected by our hosting infrastructure.
- Cookies and similar technologies: used for basic site functionality (such as remembering your theme preference) and, where enabled, by advertising and analytics providers described below.
Advertising and analytics
We use or plan to use the following third-party services, which may set their own cookies and collect data according to their own privacy policies:
- Google AdSense, to display advertising. Google may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising by visiting Google Ads Settings or aboutads.info.
- Google Analytics (or equivalent), to understand aggregate traffic patterns.
If you are located in the UK, the European Economic Area or Switzerland, a consent banner is presented on your first visit so you can choose which non-essential cookies to allow before they are set.
How we use information
We use the information described above to operate and improve the site, understand which calculators are useful, keep the site secure, and — where you have not opted out — to support advertising that keeps the site free to use.
Your rights
Depending on where you live, you may have the right to access, correct or delete personal information we hold about you, or to object to certain processing (for example under the GDPR or the CCPA). To exercise any of these rights, contact us at contact@theonecalculator.com.
Children's privacy
This site is not directed at children under 13, and we do not knowingly collect personal information from them.
Changes to this policy
We may update this policy from time to time. Material changes will be reflected by updating the "Last updated" date above.
Contact
Questions about this policy can be sent to contact@theonecalculator.com.