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Privacy Policy

Last updated: December 2025

Overview

Ontographia System Dynamics Studio is a free, browser-based learning tool. We are committed to protecting your privacy. This policy explains how we handle your data - which is simple: we don't collect it.

Data Storage

All system dynamics models you create are stored locally in your web browser using localStorage. This means:

  • Your data never leaves your device
  • We have no access to your models
  • No data is transmitted to any server
  • No account or registration is required

What We Don't Collect

We do not collect:

  • Personal information (name, email, etc.)
  • Usage analytics or tracking data
  • Your system dynamics models or diagrams
  • Browser fingerprints or device identifiers
  • Cookies for tracking purposes

Third-Party Services

This application does not use any third-party analytics, advertising, or tracking services. We do not integrate with social media platforms or use any external services that could collect your data.

Data Export & Portability

You can export your models as JSON files at any time. Since your data is stored locally, you have complete control over it:

  • Export individual models to JSON files
  • Import models from JSON files
  • Clear all data by clearing your browser's localStorage

Browser Data Persistence

Because data is stored in localStorage:

  • Data persists until you clear your browser data
  • Different browsers on the same device will have separate data
  • Private/incognito browsing may not persist data after closing
  • Data is not synced across devices

Recommendation: Export important models as JSON files to back them up or transfer them to other devices.

Security

Since no data is transmitted to our servers, there is no risk of server-side data breaches affecting your models. Your data security depends on your local device and browser security.

Children's Privacy

This tool is designed for educational purposes and is suitable for users of all ages. We do not knowingly collect any information from children because we do not collect information from anyone.

Changes to This Policy

If we make changes to this privacy policy, we will update the "Last updated" date at the top of this page. Since we don't collect email addresses, we cannot notify you of changes - please review this policy periodically.

Contact

If you have questions about this privacy policy, you can contact us through the main Ontographia website at ontographia.com.

Summary

Your system dynamics models stay on your device. We don't collect, store, or have access to any of your data. This is a free learning tool with no strings attached.