PrintTune Privacy Policy

Last updated: October 21, 2026 · Developer: Errin Tolkien · Contact: Support page

What PrintTune does

PrintTune measures your 3D printer's vibration (accelerometer) and noise (microphone) on your Wear OS watch to suggest tuning steps, with an optional phone companion for live view.

Data

• Sensor readings are processed on your device and are not transmitted to us or any server.
• The microphone is used only during a Noise Scan you start, to measure sound level and dominant frequency on-device. Audio is not recorded or uploaded.
• Reports (CSV) are created only when you export one, stored on your device / your phone's Downloads when you save them there, and shared only by you.
• The watch and phone communicate over Bluetooth (Wear OS Data Layer) directly between your own devices.
• No account, no ads, no analytics trackers. Google Play may collect standard purchase data under Google's policies for the one-time Pro unlock.

Sharing

We do not sell, rent, or share your personal data with third parties for advertising or marketing. Period.

Children

PrintTune is not directed at children under 13.

Changes

If this policy changes, the updated version will be posted on this page with a new date.