Privacy Policy

Last Updated: June 19, 2026

1. The Desktop Application

EngineeringPaper.pro is built with a privacy-first philosophy. The desktop application operates entirely locally on your machine. We do not collect, process, or store your calculations, worksheets, or sensitive engineering data. The application does not transmit your work to our servers or any third-party services. The only network requests made by the application are to validate your license key and check for software updates.

2. Information We Collect on Our Website

While the desktop application is strictly offline, limited information is collected when you interact with our website (pro.engineeringpaper.com) or contact us:

Customer Support: If you contact our support team directly, we collect your email address and any information you provide solely for the purpose of resolving your inquiry.
Website Analytics & Cookies: We may use basic, privacy-respecting analytics to understand website traffic. Additionally, our payment processor utilizes cookies to manage your checkout session securely.

3. Third-Party Services and Payment Processing

We do not sell, rent, or trade your personal information. We only use trusted third parties necessary to process your purchase:

Lemon Squeezy: Our order process is conducted by our online reseller, Lemon Squeezy, who acts as the Merchant of Record. When you purchase a license, Lemon Squeezy securely collects your payment information and email address to process the transaction, deliver your receipt, and issue your software license key. We do not process or store your credit card data on our servers. You can read their privacy policy at lemonsqueezy.com/privacy.

4. No Marketing Communications

We respect your inbox. We do not maintain a marketing mailing list and will never send you promotional emails or newsletters. Any email address provided during the checkout process is used strictly by our payment processor for order fulfillment and license management, or by our support team to respond directly to your customer service inquiries.

5. Contact Information

If you have any questions about this Privacy Policy or how your data is handled, please contact us at:

Engineering Paper LLC
Email: [email protected]