Privacy Policy
Radikulus offers free radiology calculators without user accounts. Please avoid entering names, patient identifiers or other sensitive personal information.
Radikulus is provided by BKF Merch LLC. For privacy questions or requests, use our support page.
Calculator inputs and browser storage
The adrenal washout, lung nodule doubling time, organ volume and rotator cuff healing index calculators process inputs in your browser. Their calculation code does not send your inputs or results to our servers; they are sent only if you choose to include them in a feedback report. The development BMI template saves form values in your browser’s local storage; you can remove those values by resetting the form or clearing site data.
The site also uses a service worker to cache site resources for faster loading. You can clear cached resources through your browser settings.
ChatGPT calculator
When you use the Radikulus calculator in ChatGPT, OpenAI sends the selected tool's inputs to our HTTPS endpoint hosted on Cloudflare. These inputs are the three prostate dimensions, their cm or mm unit, optional PSA, or the identifier of an educational section or example. Our server computes the result and returns the inputs, results and supporting educational content to OpenAI for display in your conversation and editable card.
The connector does not accept reports, patient identifiers, histories or protected health information. Do not provide such information. The connector has no user accounts, measurement database, advertising or embedded analytics. Application code does not persist or log measurement inputs or results; they are processed for the duration of the request. The card retains its current state while open. Opening the website or feedback link does not transfer those measurements.
Cloudflare processes network and security information to serve and protect the endpoint. OpenAI processes the conversation, tool calls and results under your OpenAI account settings and policies. These providers may retain technical or conversation records under their own policies; the application's lack of measurement storage does not mean that the providers retain no data. See Cloudflare's privacy policy and OpenAI's privacy policy.
You can stop sending inputs by closing the card or disconnecting Radikulus. Manage or delete your conversation through ChatGPT's data controls. We have no stored measurement records to retrieve or delete. Contact us through support about privacy questions or feedback records.
Analytics and hosting
We use Umami and Cloudflare Web Analytics for cookieless, privacy-friendly website usage analytics. These services collect usage and performance information, such as pages visited, referring sites and browser or device information. We do not configure analytics to collect calculator inputs or results.
Our hosting and analytics providers receive technical information needed to deliver and measure the site, such as network request information. Browser storage used by the site is separate from analytics cookies.
Feedback reports
When you send a problem report or suggestion, we receive what you write, the page you were on, your role and email address if you give them, and, if you leave that option ticked, the calculator's current inputs and result. Reports are stored as private issues in our code repository on GitHub and are used only to fix and improve the site. We use your email address only to reply about your report.
The form uses Cloudflare Turnstile to help block automated submissions. Cloudflare processes technical information needed to perform this verification.
Policy updates
We may update this policy as the site changes; the current policy will be published here.