VRCFaceTracking does not collect, transmit or store any personal data. There is no crash reporting or analytics service in the application.
Diagnostic logs are written only to your own machine under %LocalAppData%\VRCFaceTracking\logs and
are never sent anywhere. You can delete them at any time.
The application talks to VRChat over OSC on your local network, and the module registry downloads module packages from GitHub when you install or update a module. No other network traffic is made by the application itself; installed tracking modules may have their own behaviour and policies.