Privacy Policy

Information collected

When you sign in with Apple, your name and email address (or Apple relay address) are received. Your display name and notification preferences are stored on the server. Worksheet responses, lesson progress, and check-in data are stored on your device only.

How your information is used

Profile data personalizes your experience within the app. Your practice data stays on your device and is never transmitted to servers. Data is never sold, shared with third parties, or used for advertising. Under California law (CCPA), no personal information is sold or shared as those terms are legally defined.

Data storage

Account data and app content are stored in Supabase (hosted on AWS). Worksheet responses and lesson progress are stored locally on your device and are not transmitted to servers. All network communication uses TLS encryption.

Third-party services

• Apple Sign In — authentication
• Supabase — account data and content storage
• Apple Push Notification service — daily reminders (if enabled)
• Apple TestFlight — beta distribution and crash reporting

Analytics and crash reporting

During the TestFlight beta period, Apple collects crash logs and usage data through TestFlight. This data is managed by Apple under their privacy policy. No additional analytics services are used.

Age restriction

Resonant System is not intended for children under 13. By using this app, you confirm that you are at least 13 years of age.

Account deletion

You can delete your account from Settings > Account. Deletion is immediate — your profile, authentication record, and notification tokens are permanently removed from servers. Local data on your device remains until the app is uninstalled.

Data breach notification

In the unlikely event of a data breach affecting your personal information, you will be notified through the app or via your registered email address within 72 hours of discovery, as required by applicable law.

Your rights

Depending on your location, you may have rights under GDPR, CCPA, or similar laws, including the right to access, export, or delete your personal data. You can export your data from Settings > Data.

Governing law

This privacy policy is governed by the laws of the State of Washington, United States.

Contact

For privacy-related questions, submit feedback through TestFlight by taking a screenshot. A dedicated contact address will be available before public release.