Privacy Policy
Last updated: April 17, 2026
The Short Version
- Your calculator inputs never leave your device — all math runs in your browser.
- We collect anonymous analytics (page views, device type) to improve the site.
- We use Google AdSense to show ads. Google may use cookies for personalized ads.
- We never sell your data or share it with third parties for marketing.
Overview
CALTRX ("we", "our", or "the site") is committed to protecting your privacy. This Privacy Policy explains what information is collected when you use caltrx.com, how it is used, and what choices you have. By using CALTRX, you agree to the practices described here.
Information We Collect
Calculator Inputs
All calculations on CALTRX run entirely in your browser using JavaScript. Values you enter into any calculator are never transmitted to our servers. We do not store, log, or have access to any numbers you enter.
Usage Analytics
We may collect anonymous, aggregated usage data — such as which pages are visited, approximate geographic region (country level), device type, and browser type. This data cannot be used to identify individual users. It helps us understand which tools are most used and how to improve the platform.
Cookies
CALTRX may use strictly necessary cookies to support core site functionality. We do not use tracking cookies for our own marketing. Third-party services we use (including Google AdSense) may set their own cookies, as described below.
Contact Submissions
If you contact us by email, we collect the email address and message content you provide. We use this solely to respond to your inquiry and do not add you to any mailing list.
Advertising — Google AdSense
How AdSense Works
CALTRX uses Google AdSense to display advertisements. Google AdSense is a third-party advertising service provided by Google LLC. Google may use cookies and similar technologies to serve ads based on your prior visits to CALTRX and other websites.
Personalized Advertising
Google's advertising cookies allow Google and its partners to serve ads based on your browsing history. You can opt out of personalized advertising at any time by visiting Google's Ad Settings or the Network Advertising Initiative opt-out page.
EU & GDPR Users
Users in the European Economic Area (EEA) and United Kingdom may see a consent prompt for personalized ads. You have the right to refuse personalized advertising. Non-personalized ads may still be shown based on page content.
Third-Party Services
We may use the following third-party services to operate and improve CALTRX: Cloudflare Pages (hosting and CDN), Google AdSense (advertising), and analytics providers (anonymous usage statistics). Each service has its own privacy policy. We do not sell, rent, or share personal information with any third party for marketing purposes.
Data Security
Since calculations run entirely in your browser and we do not collect personal data through our tools, there is minimal data to secure. Our website is served exclusively over HTTPS to encrypt your connection.
Children's Privacy
CALTRX is a general-purpose educational tool intended for users of all ages. We do not knowingly collect personal information from children under 13 (or under 16 in the EEA). Our calculator tools can be used by anyone without providing any personal data. If you believe a child has submitted personal information to us, please contact us and we will delete it promptly.
Your Rights
Depending on your location, you may have rights regarding your personal data, including the right to access, correct, or delete information we hold about you. To exercise any of these rights, please contact us at info@caltrx.com.
Changes to This Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. The updated date at the top of this page will reflect any changes. Continued use of CALTRX after changes constitutes your acceptance of the updated policy.
Contact
If you have questions, concerns, or requests regarding this Privacy Policy, please contact us at info@caltrx.com or through our contact page.
Questions about this policy?
Contact Us