Tonas

Privacy Policy

Last updated: February 2026

This Privacy Policy describes how Tonas ("we," "us," or "our") collects, uses, and protects information when you use our websites at tonas.co and valeria.tonas.co, and any related services (collectively, the "Services"). By using the Services, you agree to the practices described in this policy.

1. Information We Collect

Information You Provide

  • Contact information (name, email address) when you use our contact form.
  • Calculator inputs (age, weight, height, activity level) when you use our fitness tools. This data is processed entirely in your browser and is not transmitted to our servers.
  • Any other information you voluntarily submit through the Services.

Information Collected Automatically

  • Anonymous usage analytics through Vercel Analytics, including page views, visit duration, and general geographic region.
  • Performance metrics through Vercel Speed Insights, including page load times and web vitals.
  • Device information such as browser type, operating system, and screen resolution (collected anonymously).
  • Referral source (how you arrived at the Services).

2. How We Use Information

  • To provide, maintain, and improve the Services.
  • To respond to your inquiries submitted through the contact form.
  • To analyze usage patterns and optimize site performance.
  • To detect and prevent fraud, abuse, or security issues.

We do not use your information for targeted advertising. We do not sell, rent, or trade your personal information to any third party for marketing purposes.

3. Calculator and Tool Data

All fitness calculator data (including BMR calculations, calorie estimates, and related inputs) is processed entirely client-side in your browser. This data is not sent to, processed by, or stored on our servers. Calculator results may be temporarily stored in your browser's session storage or encoded in URL parameters when you use the sharing feature. Shared links may contain your calculator inputs in the URL, which would be visible to anyone who accesses that link.

4. Cookies and Tracking Technologies

We use minimal cookies and tracking technologies. Vercel Analytics and Speed Insights may use cookies or similar technologies to collect anonymous performance and usage data. These tools do not collect personally identifiable information. We do not use advertising cookies or tracking pixels from advertising networks.

5. Third-Party Services

Our Services may integrate with or link to third-party services, including:

  • YouTube - We embed video content from YouTube. Google's privacy policy applies to YouTube content and any data collected by YouTube's embedded player.
  • Vercel - Our hosting provider. Vercel's privacy policy governs data collected through their infrastructure, analytics, and speed insights tools.

We are not responsible for the privacy practices of these third-party services. We recommend reviewing their respective privacy policies.

6. Data Storage and Security

We take reasonable measures to protect any information collected through the Services. However, no method of transmission over the Internet or electronic storage is completely secure. We cannot guarantee the absolute security of your information.

Contact form submissions are processed via your device's email client (mailto protocol) and are not stored on our servers. The Services are hosted on Vercel's infrastructure, which maintains industry-standard security practices.

7. Data Retention

Anonymous analytics data is retained in accordance with Vercel's data retention policies. Since we do not collect or store personal data on our servers, there is no personal data for us to retain or delete. Browser-stored data (session storage, local storage) is managed by your browser and can be cleared at any time.

8. Children's Privacy

The Services are not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe that a child under 13 has provided us with personal information, please contact us so we can take appropriate action.

9. Your Rights

Depending on your jurisdiction, you may have rights regarding your personal information, including the right to access, correct, delete, or restrict processing of your data. Since we collect minimal personal information and process calculator data entirely in your browser, most data is already under your control. To exercise any rights or make inquiries, contact us through the contact form at valeria.tonas.co/contact.

10. International Users

The Services are hosted in the United States. If you access the Services from outside the United States, your information may be transferred to and processed in the United States. By using the Services, you consent to the transfer and processing of your information in the United States.

11. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Your continued use of the Services after changes are posted constitutes your acceptance of the updated policy.

12. Contact

If you have questions about this Privacy Policy, you can reach us through the contact form at valeria.tonas.co/contact or by email.