EFFECTIVE AUGUST 1, 2026

Privacy Policy

Note Crush is designed to work without accounts, advertising, analytics, or tracking.

Plain-language summary

Note Crush does not collect or sell personal data. Optional microphone audio is processed on your device and is not recorded, stored, or transmitted by the app.

Information we collect

Note Crush does not collect personal information, usage analytics, advertising identifiers, precise location, contacts, photos, or account information. The app does not require an account.

Microphone access

If you enable piano listening, Note Crush uses the microphone to detect whether the displayed piano notes were played. Audio processing occurs on the device. The app does not record, save, upload, or share microphone audio.

Microphone access is optional. You can use manual practice without granting this permission, and you can change microphone permission at any time in iOS or iPadOS Settings.

Data stored on your device

Note Crush stores practice preferences and session state locally on your device so that your settings can be restored. This information is not transmitted to the developer or third parties. Removing the app removes its locally stored app data, subject to the normal behavior of your device and backups.

Third parties, advertising, and tracking

Note Crush does not contain third-party advertising or analytics services and does not track you across apps or websites. The app does not sell or share personal information.

Children’s privacy

Note Crush does not knowingly collect personal information from children or any other users.

Changes to this policy

If the app’s data practices change, this policy will be updated and the effective date above will be revised.

Contact

For privacy questions, contact haowei.tu@nyu.edu.