This application allows your phone or tablet to scan for Bluetooth low-energy (BLE) devices in your area. You can detect Bluetooth beacons, phones acting as beacons, Bluetooth key-chain trackers and pulse-rate monitors, Bluetooth keyboards and mouses, etc.

The detected Bluetooth LE devices are continuously-updated, in a list, with a real-time signal-strength meter for each device. This allows you to estimate the relative distance, and signal quality, for each device (Note: signal strengths may vary for each manufacturer's Bluetooth LE product).

Settings are provided, to allow the app to ignore Bluetooth LE devices with low signal strengths, and to limit the total devices detected with each scan.

An "audio tracking mode" allows the app to continuously measure the signal strength for a single Bluetooth low energy device, using a variable audio pitch to indicate the device's signal strength.