Privacy Policy
Last Updated: 2/21/2026
1. Introduction
This Privacy Policy describes how we collect, use, disclose, and protect your personal information when you use our Rock Bolt Design Calculator service (the "Service"). We are committed to protecting your privacy and handling your data transparently and securely.
2. Information We Collect
2.1 Information You Provide Directly
- Account Information: Email address, password (encrypted), name
- Communications: Messages you send to our support team
2.2 Automatically Collected Information
- Usage Data: Pages visited, features used, time spent, calculation frequency
- Device Information: Browser type, operating system, device type, IP address
- Cookies and Similar Technologies: Session cookies for authentication and functionality
- Log Data: Access times, error logs, performance data
2.3 Browser-Only Data (NOT Collected by Us)
Important: We do NOT store your calculation data on our servers.
All calculation inputs, results, and Rock Bolt Calculator data are stored locally in your browser using localStorage technology.
This browser-only data includes:
- Calculation input parameters (concrete strength, bolt diameter, bond stress values)
- Calculation results and outputs
- Batch calculation data
3. How We Use Your Information
- Provide, maintain, and improve the Service
- Process account registration and authentication
- Respond to your inquiries and provide customer support
- Send important service-related communications
- Monitor and analyze usage patterns to improve user experience
- Detect, prevent, and address technical issues or security threats
- Comply with legal obligations
4. Data Security
We implement industry-standard security measures to protect your personal information:
- SSL/TLS encryption for all data transmission
- Secure password hashing (bcrypt)
- Regular security audits and updates
- Access controls and authentication requirements
5. Your Rights
You have the right to:
- Access your personal data
- Correct inaccurate data
- Request deletion of your data
- Object to processing of your data
- Data portability
- Withdraw consent at any time
6. Contact Information
For privacy-related inquiries, please contact us:
7. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new Privacy Policy on this page and updating the "Last Updated" date. Your continued use of the Service after any changes constitutes acceptance of the updated Privacy Policy.