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Healthlyzer
Legal Document

Privacy Policy

Effective Date: April 2026 · Version 3.0

Straightforward summary: Healthlyzer does not collect, store, transmit, or retain any personal data. Your symptom selections are processed in real time and discarded immediately after the prediction is returned. There are no accounts, no database, and no history saved anywhere.

1. Introduction

This Privacy Policy describes how Healthlyzer handles information. We collect nothing and store nothing.

2. Information We Do NOT Collect

  • No personal identification information (name, email, phone, address)
  • No accounts, usernames, or passwords
  • No health data or medical history beyond the current session's inputs
  • No IP addresses or device fingerprints
  • No cookies, tracking pixels, or analytics
  • No location data
  • No browsing history or usage patterns

3. How the Application Works

  • You select symptom checkboxes across the five body-system groups
  • These binary values are submitted via HTTP POST to the Flask server
  • The server passes the values to the pre-trained Random Forest model
  • The model returns a prediction which is displayed to you
  • The request ends — nothing is written to any database or file
Important: Your symptom selections exist only in memory during the request-response cycle and are permanently discarded immediately after the prediction is returned.

4. Third-Party Services

  • Google Fonts — for typography. Google may collect standard web request data per their Privacy Policy
  • Hosting provider (Render / Vercel) — may collect standard server logs per their respective privacy policies

None of these services receive your symptom data or personal health information from this application.

5. Children's Privacy

This application is not intended for children under 18 without parental supervision. Since no data is collected at all, there is no risk of inadvertent collection of children's data.