Privacy Policy

LegatoLink ("we," "our," or "the app") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our mobile application for string instrument management, practice tracking, and music organization.

Key Point: LegatoLink stores all your data locally on your device. We do not collect, transmit, or store any personal information on external servers.

Information We Collect

Data Stored Locally on Your Device

LegatoLink records and stores the following information locally on your device only:

1. Practice Session Data

• Practice duration and timestamps
• Session notes and ratings
• Selected repertoire pieces
• Practice goals and progress
• Audio recordings (if you choose to record)

2. Instrument Information

• Instrument photos you capture or select
• Instrument details (type, maker, serial number, date)
• Maintenance records and schedules
• Care history and notes
• Document certificates and authenticity records

3. Maintenance & Care Records

• String change dates and intervals
• Repair and adjustment records
• Photos of maintenance work
• Maintenance schedules and reminders
• Service provider information

4. Schedule & Events

• Concert, lesson, and rehearsal details
• Calendar event information
• Venue addresses and locations
• Participant information
• Event photos and notes

5. Repertoire Data

• Music pieces you select or add
• Practice progress per piece
• Section markers and notes
• Custom repertoire entries

6. Gamification Data

• Achievement badges earned
• Points and level progression
• Practice streaks
• Activity history

7. User Preferences

• App language selection
• Display settings
• Notification preferences
• Practice goals and reminders

8. Photos & Media

• Instrument photos
• Maintenance record photos
• Event documentation photos
• QR code scans for document verification

How We Use Your Information

All data is used solely within the app on your device for the following purposes:

• Practice Tracking: Monitor your practice sessions and progress
• Instrument Management: Organize and maintain your instrument collection
• Schedule Organization: Track concerts, lessons, and rehearsals
• Maintenance Planning: Schedule and track instrument care
• Document Verification: Verify instrument certificates via QR codes
• Gamification: Track achievements and motivate practice habits
• Personalization: Remember your preferences and settings

Data Storage & Security

Local Storage Only

• All data is stored exclusively on your device
• No data is transmitted to external servers
• No cloud backup or synchronization
• No user accounts or authentication required

Data Security

• Data is stored using your device's built-in storage security
• Photos are stored in the app's private container

Cryptographic Operations

• Document Verification: We use Ed25519 cryptographic signatures to verify instrument certificates scanned via QR codes
• No Key Collection: We do not collect or store any private cryptographic keys
• Public Key Validation: Only public keys from trusted issuers are stored locally for verification

Data Sharing & Third Parties

We Do NOT Share Your Data

• No data transmission to external servers
• No third-party analytics or tracking services
• No advertising networks
• No social media integration that shares your data

Optional Sharing Features

You may choose to share data using your device's built-in sharing features (QR Code Export, Event Sharing, Calendar Sync). Important: When you use these features, you control what is shared and with whom. We do not facilitate or track these sharing actions.

Permissions We Request

LegatoLink requests permissions such as Camera, Photo Library, Calendar, Contacts, Microphone, and Notifications purely to enable specific local features. You can deny any of these permissions and continue to use the app.

Your Rights & Controls

• Access: All your data is accessible within the app.
• Delete: Delete items within the app or uninstall the app to permanently remove all data.
• Export: Use the QR code export feature for instruments.

Children's Privacy

LegatoLink does not collect any personal information from anyone, including children under 13 years of age. Parents can safely allow children to use LegatoLink knowing that no data leaves their device.

Contact Us

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

Email: web@ruederome.com

Website: https://legatolink.ruederome.com/

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This policy reflects our core principle:
Your data belongs to you, stays with you, and is controlled by you.