Student Privacy Policy

Last Updated: October 11, 2026

At EOCCalculator.online, we take student privacy with the utmost seriousness. Our core architecture was engineered from day one to guarantee that no student grade data is ever transmitted, logged, or stored on external servers.

1. Client-Side Calculation Guarantee

When you enter your coursework grades, exam weights, or target scores into our calculators, all mathematical computations are executed 100% locally on your device using client-side JavaScript. Your grades are never transmitted over the internet to our backend or to any third party.

2. Local Storage on Your Device

We use browser localStorage exclusively for two convenient user experience features:

• Theme Preference: Remembering whether you selected Light Mode or Dark Mode.
• Semester Course Deck: If you use the "Save to Semester Deck" feature, those course names and targets remain saved inside your browser's private memory so you can return to them later. You can clear this data at any moment by clicking "Clear All".

3. No Account Creation or Personal Identifiable Information (PII)

You are never required to register an account, log in, or provide your real name, school name, student ID number, email address, or phone number to use any calculator on EOCCalculator.online.

4. Third-Party Analytics and Advertising

We do not sell, rent, or trade student information. Standard server log data (such as web browser version, operating system, and IP address) may be processed temporarily by hosting infrastructure solely for technical performance, DDoS mitigation, and server diagnostics.

5. Contacting Us About Privacy

If you have questions regarding our privacy architecture, you may contact our team at:
Email: [email protected]