Privacy Policy - The Multitrack Player

3. How We Use Your Information

We use the collected information to:

• Authentication: Verify your identity and manage your session
• Functionality: Provide application features (audio playback, track management, pitch transposition)
• Export: Process your multitrack project locally on your device to generate an audio file in the format you choose
• Service Improvement: Analyze application usage to improve user experience
• Troubleshooting: Identify and resolve technical issues
• Communication: Send important notifications about the application (if applicable)

4. Sharing Information with Third Parties

4.1 Third-Party Services

We use the following third-party services:

4.2 We Do Not Sell Your Data

We do not sell, rent, or share your personal information with third parties for marketing purposes.

4.3 Legal Requirements

We may disclose your information if required by law or in response to valid requests from public authorities.

5. Data Storage and Security

5.1 Local Storage

• Application data is stored locally on your device using CoreData and UserDefaults
• Audio files remain on your device and are not synced with external servers
• Exported audio files are generated entirely on your device and are only shared externally when you explicitly choose to do so via the iOS share sheet

5.2 Security

We implement reasonable security measures to protect your information:

• Use of secure protocols (HTTPS) for communications
• Secure storage of session data
• Authentication through trusted services (Google Sign-In and Sign in with Apple)

However, no method of Internet transmission or electronic storage is 100% secure.

6. Data Retention

• Session data: Retained while your session is active or until you log out
• Local data: Retained on your device until you uninstall the application or manually delete the data
• Analytics data: Managed by Firebase according to their retention policies

7. Your Rights

You have the right to:

• Access: Request a copy of the personal data we have about you
• Rectify: Correct inaccurate or incomplete data
• Delete: Request deletion of your personal data
• Revoke consent: Log out and stop using the application at any time

To exercise these rights, you can:

• Log out from the application
• Delete your account through the Account screen in the app (see Section 7.1)
• Uninstall the application to delete all local data
• Contact us at the address provided in Section 11

7.1 Account Deletion

You can delete your account directly from within the application:

• How: Go to Account Settings → Delete Account
• What happens: Your account will be permanently deleted immediately
• Data deleted:
  • Your authentication credentials
  • All multitracks, tracks, and audio files associated with your account
  • All personal data stored in the application
  • Session information
• Timeline: Immediate deletion from the application and local storage
• Confirmation: You will receive a confirmation message once deletion is complete

Note: This action cannot be undone. All your data will be permanently removed.

8. Children's Privacy

The Multitrack Player is not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If we discover that we have collected information from a minor, we will delete it immediately.

9. International Transfers

Your data may be transferred to and stored on servers located outside your country of residence, where data protection laws may differ. By using the application, you consent to these transfers.

10. Changes to This Policy

We may update this Privacy Policy periodically. We will notify you of significant changes through:

• Updating the "Last Updated" date at the top of this policy

We recommend reviewing this policy periodically.

11. Contact

If you have questions, comments, or requests about this Privacy Policy, you can contact us at:

• Email: multitrack-player-app@outlook.com
• Developer: Esteban Triviño

12. Technical Details for App Store Connect

Data Collected (according to Apple categories):

Contact Information:

• Email address (linked to user identity)

Identifiers:

• User ID (linked to user identity)

Usage Data:

• Product interactions — multitrack/track/playlist names, playback actions, pitch and volume adjustments (linked to user identity)
• Export activity — format and duration (linked to user identity)
• Diagnostic data (linked to user identity)

Location:

• Approximate location (country and city) — derived automatically by Firebase from device locale and IP address (linked to user identity)

Data Used to Track You: No

Data Linked to You:

• Email address
• User ID
• Name
• Usage data
• Diagnostics

13. Additional Declarations

• We do not collect financial information: The application does not process payments or store credit card information
• We do not access contacts: We do not request access to the device's contact list
• We do not access location: We do not collect geographic location data
• We do not access camera/photos: We only access audio files through the system document picker
• We do not track across apps: We do not track your activity in other apps or websites
• In-app browser: The chord browser can load any external website; those websites may have their own tracking technologies that are outside our control