Connected USB device
A user-selected USB mass-storage device remains connected while DucyDrive performs a read-only performance benchmark and reports the result.
Google Play · Foreground services
Visible, user-controlled USB operations.
These Android-device recordings demonstrate the features associated with connected-device and data-transfer foreground services.
Local backup and export
The user chooses an Android document destination, starts a raw USB backup, sees live byte progress, and retains a visible Stop control.