TDEE Lab

Privacy Policy

Effective October 13, 2026

TDEE Lab is a static calculator website. The calculators run in your browser and do not require an account.

Calculator inputs

Calculator inputs and results are processed in your browser. They are not sent to TDEE Lab or to any other server. They leave your browser only when you choose to export them: downloading a PDF report or a saved-profile file, or copying a result summary to your clipboard with the share button. Where an exported file or shared text goes after that is up to you.

Browser storage

TDEE Lab uses your browser's storage on your device only:

  • Theme preference (localStorage) remembers light or dark mode.
  • Saved TDEE profiles (localStorage) are stored only when you choose to save a profile. You can delete them with the clear profiles control or by clearing site data in your browser.
  • Calculator handoff (sessionStorage) passes your calorie target from the TDEE calculator to the macro calculator once when you follow that link. It is removed after it is read, and sessionStorage is cleared when the tab is closed.
  • Offline cache (service worker cache) stores the site's own pages, styles, scripts, fonts, and icons so the calculators can load offline. It does not contain your calculator inputs.

None of this storage is sent to TDEE Lab. TDEE Lab does not set cookies.

Fonts and third-party requests

Fonts (Inter, Instrument Serif, and JetBrains Mono) are served from the TDEE Lab domain, so loading pages does not contact Google Fonts or another font service. When you choose to download a PDF report, your browser fetches the open-source jsPDF library from cdnjs.cloudflare.com at that moment. Like any web request, that request reveals your IP address and browser details to Cloudflare. Your report data is not part of that request; the PDF is generated in your browser.

Accounts

TDEE Lab does not currently have accounts, sign-in, subscriptions, or a backend user database.

Analytics

TDEE Lab uses Vercel Web Analytics for aggregated page-view statistics. The analytics script and its data requests are served from the TDEE Lab domain. Vercel states that this service records anonymous data, does not use third-party cookies, and does not track a visitor across different websites or days. Aggregated dimensions can include the page path, referrer, approximate location, browser, operating system, and device type. TDEE Lab does not send calculator inputs or results as analytics events. Read Vercel's Web Analytics privacy and compliance documentation.

Hosting

The site is hosted on Vercel. As with any website, Vercel processes standard request information, such as IP address, requested URL, and user agent, to deliver pages and protect the service.

Advertising

Advertising scripts are not enabled at this time. Before ads are enabled, this policy and the site's consent controls will be updated as required for the advertising services and regions involved.

Contact

Privacy questions can be sent to support@digitalrichkid.com.