Privacy Policy

1. Introduction

Contour Maker ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our contour generation service.

2. Information We Collect

2.1 Data You Provide

• Elevation Data Files: The coordinate and elevation data files you upload for processing. These files are temporarily stored for processing purposes only.
• Payment Information: When you make a purchase, payment is processed by the active checkout provider (such as Creem, Paddle, or PayPal). We do not store your full credit card numbers or bank account details.

2.2 Automatically Collected Information

• Session Identifier: A randomly generated UUID stored in your browser's local storage to track your processing tasks and enable session recovery.
• Usage Data: Information about how you interact with our service, including processing parameters and task history.
• Technical Data: Browser type, device information, and IP address for security and service optimization purposes.

3. How We Use Your Information

We use the collected information for the following purposes:

• To process your elevation data and generate contour files
• To process payments and fulfill orders
• To provide customer support and respond to inquiries
• To improve our service and develop new features
• To detect and prevent fraud or abuse
• To comply with legal obligations

4. Data Retention

• Uploaded Files: Your uploaded elevation data files are automatically deleted within 1 hour after processing is complete.
• Generated Files: Output DXF files are retained for 1 hour after generation to allow for download.
• Transaction Records: Payment and order records are retained for accounting and legal compliance purposes.
• Session Data: Task history associated with your session identifier is retained for 30 days.

5. Data Sharing

We do not sell, trade, or rent your personal information to third parties. We may share information only in the following circumstances:

• Payment Processing: Transaction data is shared with the selected payment provider to process your payments.
• Legal Requirements: We may disclose information if required by law or in response to valid legal requests.
• Business Transfers: In the event of a merger, acquisition, or sale of assets, user information may be transferred.

6. Data Security

We implement appropriate technical and organizational measures to protect your data, including:

• SSL/TLS encryption for all data transmission
• Encrypted storage for sensitive data
• Regular security assessments and updates
• Access controls and authentication measures

7. Your Rights

Depending on your location, you may have the following rights:

• Access to your personal data
• Correction of inaccurate data
• Deletion of your data
• Data portability
• Objection to processing
• Withdrawal of consent

To exercise these rights, please contact us using the information provided below.

8. Cookies and Local Storage

We use browser local storage to:

• Store your session identifier for task tracking
• Remember your processing preferences
• Enable session recovery if you close your browser

You can clear this data by clearing your browser's local storage.

9. Children's Privacy

Our service is not intended for children under 16 years of age. We do not knowingly collect personal information from children under 16.

10. International Data Transfers

Your data may be processed in countries other than your own. We ensure appropriate safeguards are in place for any international data transfers.

11. Changes to This 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.

12. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at: