Last updated: 2026-07-01
This Privacy Policy explains how HydraFit.online ("HydraFit", "we", "us", "our") handles information when you visit our website and use our calculators.
All health data you enter into our calculators — including height, weight, age, dates, or any other personal figures — is processed entirely client-side using JavaScript running in your own browser. This information is never transmitted to, or stored on, our servers. We have no access to the numbers you calculate.
Like most websites, our hosting provider and any analytics tools we use may automatically collect standard technical data, such as:
This data is used in aggregate to understand site traffic and improve the user experience. It is not linked to the personal health figures you enter into calculators.
We may use essential and analytics cookies to operate the website and understand aggregate usage patterns. You can control or disable cookies through your browser settings at any time; doing so will not affect your ability to use our calculators.
We may use third-party services such as web analytics or advertising partners, which may collect information in accordance with their own privacy policies. We recommend reviewing the privacy policies of any linked third-party services.
HydraFit.online is not directed at children under 13, and we do not knowingly collect personal information from children.
Because calculator inputs never leave your device, there is no server-side health data for us to store or secure. Any technical/analytics data collected is handled using industry-standard security practices by our hosting and analytics providers.
Depending on your jurisdiction, you may have rights regarding any technical data collected about your visit, including the right to request information about data practices. Contact us using the details below with any questions.
We may update this Privacy Policy periodically. Changes will be posted on this page with a revised "last updated" date.
Questions about this Privacy Policy can be sent via our Contact page.