1. Introduction

This Privacy Policy explains how Psi-quencer (« we, » « our, » or « the application ») collects, uses, stores, and protects your personal information. We are committed to protecting your privacy and complying with the General Data Protection Regulation (GDPR) and other applicable data protection laws.

2. Information We Collect

2.1 License Information

When you activate a license for Psi-quencer, we process the following information contained in your license key:

• Name: The name associated with your license purchase
• Email address: The email address used for your license purchase
• License key: A unique identifier for your license
• Activation date: The date when you activated your license

2.2 Information We Do NOT Collect

• We do not collect usage statistics or analytics
• We do not track your use of the application
• We do not collect any audio data or MIDI data you process
• We do not collect system information beyond what’s necessary for license validation
• We do not use cookies or similar tracking technologies

3. Legal Basis for Processing

We process your personal data based on the following legal grounds under GDPR Article 6:

• Contract performance (Article 6(1)(b)): Processing your license information is necessary to provide you with the licensed software and verify your right to use it
• Legitimate interests (Article 6(1)(f)): Protecting our software from unauthorized use and piracy

4. How We Use Your Information

We use your personal information solely for:

• License validation: Verifying that you have a valid license to use Psi-quencer
• License management: Allowing you to activate, deactivate, and view your license status
• Software protection: Preventing unauthorized use of our software

5. Data Storage and Security

5.1 Local Storage

All personal data is stored locally on your device using platform-specific secure storage:

• macOS: Apple Keychain
• Windows: Windows Credential Manager
• Linux: Encrypted file with restricted permissions

5.2 No Cloud Storage

We do not transmit or store your personal data on any external servers or cloud services. All data remains on your device.

5.3 Security Measures

• License data is encrypted using platform-specific security features
• Access to license data requires user authentication (when supported by the OS)
• License keys are validated using cryptographic signatures

6. Data Retention

Your license information is retained on your device:

• Active licenses: As long as you keep the license activated
• Deactivated licenses: Immediately deleted when you deactivate your license through the application

You can remove all stored data at any time by deactivating your license in the application.

7. Your Rights Under GDPR

As a data subject, you have the following rights:

7.1 Right to Access (Article 15)

You can view all stored license information directly in the application’s license dialog.

7.2 Right to Rectification (Article 16)

If your license information is incorrect, please contact us with your correct information.

7.3 Right to Erasure (Article 17)

You can delete all your personal data by deactivating your license in the application.

7.4 Right to Data Portability (Article 20)

Your license key serves as portable data that you can use to activate the software on different devices.

7.5 Right to Object (Article 21)

You can object to processing by not activating a license (though this will limit software functionality).

7.6 Right to Restriction of Processing (Article 18)

You can restrict processing by deactivating your license.

8. Third-Party Services

8.1 Payment Processors

When you purchase a license, you will be redirected to third-party payment processors (such as Gumroad). These services have their own privacy policies:

• Gumroad: https://gumroad.com/privacy

We do not receive or store any payment information (credit card numbers, billing addresses, etc.).

8.2 External Links

The application may open your default web browser to visit:

• Our website for software information
• Payment processor websites for license purchases

These websites have their own privacy policies.

9. International Data Transfers

Since all data is stored locally on your device, there are no international data transfers.

10. Children’s Privacy

We do not knowingly collect personal information from children under 16.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by:

• Updating the « Last Updated » date at the top of this policy
• Providing a notice in the application (for significant changes)

12. Contact Information

For any questions, concerns, or to exercise your rights regarding this Privacy Policy, please contact:

13. Complaints

If you believe we have not handled your personal data properly, you have the right to lodge a complaint with your local data protection authority:

• For EU residents: Your national data protection authority
• For UK residents: Information Commissioner’s Office (ICO)

14. Data Processing Agreement

No data processing agreement is required as all data is processed locally on your device and we do not act as a data processor for any third party.