Online Prism Calculator is dedicated to providing high-precision Euclidean 3D geometry solvers with complete respect for your privacy. We believe mathematical calculation should be fast, accessible, and free of invasive tracking.

Effective Date: January 1, 2025•Last Updated: September 26, 2026•Version 1.3

Privacy at a Glance

100% Client-Side Solvers

All prism calculations, 3D graphics rendering, and formula proofs execute strictly in your browser. Your entered dimensions and geometric inputs are never transmitted to our servers or stored.

No Accounts or Profiles

You do not need to register, provide your email, or create an account to use any of our calculators, 2D unfolded nets, or master formula tables.

Local Storage Only

We only use your browser's local storage to remember your display theme (Dark or Light Mode). No cross-site profiling or tracking cookies are placed.

Zero Data Selling

We never sell, rent, monetize, or broker your personal information. Online Prism Calculator is built strictly as a free educational and professional utility.

1. Overview

Online Prism Calculator is a static informational and educational website. We provide free geometric calculators, formulas, and visual models for students, educators, and professionals. Because this is a static website, we do not require account registration, and we do not collect or store your personal information.

2. Data Collection & Processing

All calculations and interactive visual tools run entirely within your web browser on your device. The values, dimensions, or parameters you enter are processed locally in real time and are never sent to, collected by, or stored on our servers.

3. Cookies & Local Storage

We do not use tracking cookies, marketing pixels, or advertising trackers. We only use browser local storage to save your visual theme preference (Light or Dark mode) so your choice is remembered on your next visit. You can clear your browser storage at any time.

4. Server Logs & Content Delivery

Like almost all websites, the web servers and hosting infrastructure that deliver our static pages may log basic, non-personally identifiable technical information (such as your browser type, device type, and referring URL) solely for operational reliability, security, and traffic performance.

5. External Links

Our website may contain links to external educational sources or reference materials. We are not responsible for the content or privacy policies of third-party websites.

6. Contact Us

If you have any questions regarding this Privacy Policy, feel free to reach out via our Contact page or email us at support@onlineprismcalculator.com.