Last updated: July 2026
Trumpet Keys does not collect, store, transmit, or share any personal data. The app works entirely offline and does not require an account.
Trumpet Keys requests access to your Mac's microphone solely to:
Audio captured through the microphone is processed entirely on your device, in real time, and is never recorded, saved, stored, or transmitted anywhere — not to the developer, not to any third party, and not to any external server. No audio data leaves your Mac at any point.
Trumpet Keys does not collect:
The app does not use analytics services, advertising networks, or any third-party tracking tools.
If you choose to import a custom SF2 soundfont file, that file is copied locally to your Mac's Application Support folder for the app's use. It is never uploaded, shared, or transmitted anywhere.
Trumpet Keys does not require, and does not use, an internet connection for any of its features. All functionality — note identification, tuning, and sound playback — works fully offline.
Trumpet Keys does not knowingly collect any information from anyone, including children, because it does not collect information at all.
If this policy changes in the future, the updated version will be posted on this page with a revised "Last updated" date.
If you have any questions about this privacy policy, contact: REPLACE_WITH_YOUR_EMAIL@example.com