Privacy Policy

Last Updated: March 25, 2026

1. Introduction

JustinGuitar ("we", "us", "our") operates the Note Trainer application. This Privacy Policy explains how we collect, use, and protect your information when you use our App.

2. Information We Collect

Account Information: When you sign in via your JustinGuitar account, we receive your email address and username.

Usage Data: We collect data about how you interact with the App, including game scores, progress, and session activity.

Device Information: We may collect device type, operating system, and app version for troubleshooting and compatibility purposes.

Diagnostic Data: We automatically collect crash reports, error logs, and performance data. This may include your IP address, device identifiers, and technical details about the state of the App at the time of an error. This data is used solely for diagnosing and fixing issues.

3. How We Use Your Information

We use your information to:

1. provide and maintain the App;
2. sync your progress across devices;
3. improve and optimize the App experience;
4. diagnose errors and monitor App stability;
5. respond to support requests;
6. send important service-related communications.

4. Data Storage and Security

Your data is stored securely on servers managed by JustinGuitar. Diagnostic data is processed by Sentry (https://sentry.io), a third-party error monitoring service, and stored on their servers in the EU. We implement industry-standard security measures to protect your information. However, no method of electronic transmission or storage is 100% secure, and we cannot guarantee absolute security.

5. Data Sharing

We do not sell your personal information. We may share data with:

1. service providers who assist in operating the App, including Sentry for error monitoring and crash reporting;
2. law enforcement when required by law;
3. other parties with your explicit consent.

6. Your Rights

You may:

1. access and update your account information through your JustinGuitar Dashboard;
2. request deletion of your data by contacting support;
3. opt out of non-essential communications.

Users in the EU/EEA have additional rights under GDPR, including the right to data portability and the right to lodge a complaint with a supervisory authority.

7. Children's Privacy

The App is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, please contact us so we can delete it.

8. Third-Party Services

The App may contain links to third-party websites or services. We are not responsible for the privacy practices of those third parties. We encourage you to review their privacy policies.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Continued use of the App after changes constitutes acceptance of the updated policy. We will notify you of significant changes through the App or via email.

10. Contact Us

For questions about this Privacy Policy or to exercise your data rights, contact us at [email protected].