Privacy Policy

Last updated: December 2025

🔒 Our Privacy Commitment

At VSTAEX, we are committed to protecting your privacy. This Privacy Policy explains how we handle your data when you use our Application. The most important thing to know: VSTAEX operates entirely offline, and we do not collect, transmit, or store any of your data.

1. Information We Do NOT Collect

VSTAEX is designed with privacy as a core principle. We do NOT collect:

  • Personal information (name, email, address, etc.)
  • Performance estimation data or scenarios
  • Calculation results or analysis data
  • Usage statistics or analytics
  • Device information or identifiers
  • Location data
  • Any other data from your device

2. Local Data Storage

All data created and used within VSTAEX is stored exclusively on your device:

  • Scenarios: All saved scenarios, including input parameters and results, are stored locally
  • Settings: Application preferences and configurations are stored on your device
  • Calculations: All calculations are performed locally and never transmitted
  • Exported Data: When you export scenarios, the files are created and saved on your device

This data remains on your device and is never sent to our servers or any third parties.

3. Offline Operation

VSTAEX is designed to work completely offline:

  • No internet connection is required for any core functionality
  • No data is transmitted over the network
  • No cloud synchronization or backup services
  • No remote servers or third-party services are accessed

You have complete control over your data at all times.

4. Data Export and Import

VSTAEX provides export and import functionality:

  • Export: You can export your scenarios to JSON files stored on your device
  • Import: You can import scenarios from JSON files on your device
  • Control: You decide what to export, where to store it, and when to import it

All export and import operations are performed locally on your device. We do not have access to exported files or their contents.

5. Website Information

When you visit our website (www.vstaex.org), standard web server logs may collect:

  • IP address
  • Browser type and version
  • Pages visited and time spent
  • Referring website

This information is used solely for website analytics and improvement. It is not linked to your use of the Application.

6. Contact Forms

If you contact us through our website contact form, we collect:

  • Name (as provided)
  • Email address (as provided)
  • Message content

This information is used solely to respond to your inquiry and is not shared with third parties. We do not use this information for marketing purposes unless you explicitly opt in.

7. Third-Party Services

VSTAEX does not integrate with any third-party analytics, advertising, or tracking services. The Application does not use cookies, tracking pixels, or any other tracking technologies.

8. Data Security

Since all data is stored locally on your device:

  • Your data security depends on your device's security measures
  • We recommend using device encryption and strong passwords
  • Regular backups using the export functionality are recommended
  • We are not responsible for data loss due to device failure, theft, or unauthorized access

9. Children's Privacy

VSTAEX is not intended for use by children under the age of 13. We do not knowingly collect any information from children. Since we do not collect any information, this is not applicable, but we include this statement for completeness.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. You are advised to review this Privacy Policy periodically for any changes.

11. Your Rights

Since we do not collect or store your data, you have complete control:

  • You can delete all data by uninstalling the Application
  • You can export your data at any time
  • You can modify or delete individual scenarios within the Application
  • You have full access to all data stored on your device

12. Contact Us

If you have any questions about this Privacy Policy, please contact us:

Email: [email protected]
Support: [email protected]

Summary

VSTAEX does not collect, transmit, or store any of your data. All calculations, scenarios, and settings remain on your device. You have complete control and privacy. This is not just a promise—it's how the Application is designed to work.