Privacy Policy & Data Security Guarantee

1. Overview & Our Privacy Philosophy

At MHTC (Multi-Holistic Therapy Center), available at https://multiholistictherapycenter.com, we believe that web applications can be functional, fast, and completely private. We do not collect, store, transmit, monetize, or share your personal data. All mathematical operations across our 35 calculator tools execute locally in your web browser session.

2. Technical Architecture: How Your Data Stays Local

Traditional web applications send user inputs to a remote server, process the calculation on a backend database, and send the response back across the internet. MHTC operates differently:

• Client-Side Execution: All algorithms (quadratic formula, matrix elimination, statistical Z-tests, regression lines) run locally using Vanilla JavaScript in your device RAM memory.
• Zero Server Logging: Our static hosting servers do not record calculation inputs, datasets, matrix parameters, or target scores.
• Network Independence: Once static web assets (HTML, CSS, JS) load in your browser, you can disconnect from the internet and continue using all calculators offline.

3. Data We Do NOT Collect

To provide total transparency, we explicitly confirm that MHTC does NOT collect any of the following information:

Data Category	Collection Status	Details
Personal Identifiers	❌ Zero Collection	We do not require accounts, usernames, passwords, or phone numbers.
Calculation Inputs & Datasets	❌ Zero Collection	Numbers, statistical datasets, and equations typed into tools never leave your browser.
Tracking Cookies	❌ Zero Tracking	We do not use tracking cookies, cross-site profiling pixels, or advertising beacons.
Location & GPS Data	❌ Zero Collection	We do not request or track precise geolocation coordinates.

4. Local Storage Usage (Browser Memory)

Our website may use your web browser's native localStorage or sessionStorage feature strictly for client-side user interface preferences (such as remembering dark/light observatory theme selections or temporary input field clearing). This data is stored locally on your device and is never transmitted to us or any third party. You can clear local storage at any time via your browser settings.

5. Children's Online Privacy Protection Act (COPPA) Compliance

MHTC Math Tools are widely used by K-12 students, teachers, and schools. Because our application collects no personal information, requires no user registration, and contains no interactive public forums, MHTC is fully compliant with the Children's Online Privacy Protection Act (COPPA) and the Family Educational Rights and Privacy Act (FERPA). Children under 13 can safely use all calculators without parental consent concerns.

6. European General Data Protection Regulation (GDPR) Compliance

Under the European Union GDPR and the UK Data Protection Act, users have rights regarding personal data processing. Because MHTC acts as a privacy-by-design utility that processes zero personal data, we fulfill all core GDPR privacy requirements automatically:

• Right to Access / Portability: No data is stored on our servers to export.
• Right to Erasure ("Right to be Forgotten"): Closing your browser tab or clearing local storage permanently removes all local calculation states.
• Data Minimization: We collect zero bytes of user telemetry.

7. Server Security & HTTPS Encryption

While calculations run locally on your device, all static web files (HTML, CSS, JavaScript) served by MHTC are delivered over secure HTTPS / TLS 1.3 encryption with standard Content Security Policies (CSP) to protect against tampered static assets.

8. Contacting Us Regarding Privacy Concerns

If you have questions or concerns regarding our privacy practices or security architecture, please contact our privacy compliance officer:

MHTC Privacy Officer
Email: privacy@multiholistictherapycenter.com
Direct Web Form: Contact Us Page