Privacy Policy

1. Introduction

DiskPiano ("we", "our", "us") provides music-related software, websites, and mobile applications designed to interact with self-playing pianos, MIDI devices, and digital instruments.

This Privacy Policy explains how we collect, use, store, protect, and share your information when you use DiskPiano on any platform.

By using DiskPiano, you agree to the practices described in this Privacy Policy.

2. Information We Collect

We collect the following categories of information.

2.1. Account Information

If you create an account (future feature):

• Email address
• Password (encrypted)
• Device identifiers

2.2. Device & Piano/MIDI Information

When you connect your piano or MIDI adapter to DiskPiano, we may collect:

• MIDI device name
• Piano model (Disklavier, PianoDisc, QRS, etc.)
• Connection type (USB, Bluetooth)
• Local usage statistics (tempo changes, song selections, etc.)

These data points are used only to provide functionality and diagnostics.

2.3. User-Uploaded MIDI Files (Cloud Sync)

If a user uploads a MIDI file into the app, the MIDI file itself is transmitted to our servers for:

• Multi-device synchronization
• Playback continuity
• Analysis and improvement of sync features
• Future device linking (when accounts are introduced)

Uploaded MIDI files can be retrieved from another device logged into the same future account.

We do not sell or share MIDI files with third parties.

2.4. Usage Analytics

We use the following third-party tools:

2.5. Payment Information

DiskPiano does not process or store payment information.

All payments are handled exclusively by:

• Apple In-App Purchases
• Google Play Billing

Your credit card information is never received or stored by DiskPiano.

We may only receive anonymous transaction metadata (e.g., subscription active/inactive).

2.6. Website Cookies (diskpiano.com)

We use minimal cookies on our website:

• Essential cookies → for basic site function
• Google Analytics cookies → for usage statistics
• Consent cookie → to record your GDPR choice

We do not use advertising or tracking pixels.

2.7. Local Storage (In-App)

DiskPiano may store on your device:

• Playback preferences (tempo, favorites)
• UI settings
• Device connection history
• Bluetooth/USB configuration
• Push notification tokens

No sensitive personal information is stored locally.

2.8. Push Notifications

If you enable notifications, we may send:

• Feature updates
• New music releases
• Account or sync alerts
• Subscription reminders

You may disable notifications at any time in device settings.

3. How We Use Your Information

We use collected information to:

• Provide and operate app features
• Enable piano/MIDI connection and playback
• Sync your MIDI files across devices
• Improve performance and diagnostics
• Enhance features through analytics
• Deliver customer support
• Comply with legal obligations
• Detect and prevent misuse or errors

We do not use your information for advertising.

4. Legal Basis for Processing (GDPR)

For users in the EU/EEA:

• Contractual necessity: To provide app features, MIDI syncing, and cloud storage
• Legitimate interest: Diagnostics, analytics, crash reports
• Consent: Cookies and optional settings
• Compliance: When required by law

5. Sharing of Your Information

We do not sell, rent, or trade personal data.

We only share data with service providers necessary to run DiskPiano:

• Firebase (Google LLC) – analytics, crash reports, cloud storage
• Sentry (Functional Software Inc.) – error reporting
• Hosting & CDN providers – storage and delivery of MIDI files
• Apple / Google – in-app purchase verification

All partners operate under strict data-processing agreements.

6. International Data Transfers

Because we use Firebase and Sentry, data may be processed in:

• United States
• Europe
• Other regions depending on Google/Sentry infrastructure

We rely on contractual protections such as SCCs (Standard Contractual Clauses) where applicable.

7. Data Retention

We retain data as follows:

• Firebase Analytics: standard retention (up to 26 months)
• Crash logs (Sentry): up to 90 days
• MIDI files uploaded by users: until the user deletes the file or requests deletion
• Email/support requests: as needed to fulfill support

You may request deletion at any time.

8. Your Rights (GDPR & Global Privacy Rights)

You have the right to:

• Access your data
• Correct inaccurate information
• Export your data
• Delete your data
• Withdraw consent (cookies or analytics)
• Object to certain processing activities

To exercise these rights, contact: support@diskpiano.com

We will respond within 30 days.

9. Children's Privacy

DiskPiano is intended for users aged 9 and older.

We do not target or knowingly collect personal information from children under 13 years of age.

If you believe a child under 13 has provided information, please contact us to delete it.

10. Security

We use technical and organizational measures to protect information:

• Encryption in transit (HTTPS)
• Secure cloud hosting
• Access-controlled infrastructure
• Regular security audits
• No storage of passwords in plaintext

However, no system is 100% secure; use DiskPiano at your own discretion.

11. Links to Third-Party Sites

DiskPiano may contain links to external websites (e.g., Wikipedia, YouTube references).

We are not responsible for their privacy practices.

12. Changes to This Privacy Policy

We may update this Privacy Policy occasionally.

Changes will be posted at:

https://diskpiano.com/privacy

and the "Last updated" date will be modified.

13. Contact Us

If you have any questions or requests regarding privacy, contact us at: