Auto Off Bluetooth

Auto Off Bluetooth is a background utility for Android that switches the Bluetooth radio off once no device is connected to it. It watches connection state and, when the last paired device drops away, disables the adapter instead of leaving it enabled and scanning. The intended effect is to keep the radio active only during the periods it is actually carrying traffic, such as a headset session or a car stereo connection, and idle the rest of the time.

The application works with the Bluetooth toggle rather than replacing the system Bluetooth interface, so pairing and device management continue to happen in Android settings. It is published by Jeremy Newton under the GPL-3.0-only licence and is available for Android only. Because it depends on the platform's Bluetooth connection events and permission to change the adapter state, the exact behaviour is bound to what the installed Android version allows.