Fretmancer — Last updated July 2026
Fretmancer does not collect, transmit, or share any personal information. Your instrument profiles, setup records, maintenance log, and settings are stored locally on your device and never leave it.
The tuner and intonation checker need microphone access to hear the note you play. Permission is requested only when you open one of those screens, never at launch.
Audio is analyzed in memory to measure pitch and is discarded immediately. Nothing is recorded, saved to a file, written to a log, or transmitted. There is no way for the app to send audio anywhere — see the next section.
The app makes no network requests. The Android build ships without the
INTERNET permission, so it cannot open a network connection at
all. There are no analytics, advertising, tracking, or crash-reporting
services.
The one-time unlock is processed entirely by Google Play. We never see your payment details. Google Play keeps its own record of the transaction under its own privacy policy; the app itself sends Google nothing beyond the purchase request you initiate, which is handled on-device by the Play Store app.
PDF setup sheets are generated on your device only when you ask for one, and are saved or shared wherever you choose. We receive no copy.
Fretmancer collects no data from anyone, including children under 13.
If this policy ever changes, the updated date above changes with it. Any change that would add data collection would also require an updated Google Play Data Safety declaration.
Questions? fretmancer@proton.me