Adafruit Bluefruit LE Connect 2.2.2 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X was originally produced by Adafruit Industries. We recommend checking the downloaded files with any free antivirus. Adafruit Bluefruit LE Connect for Mac lies within Internet & Network Tools, more precisely Network tools.
From the developer:
Adafruit Bluefruit LE Connect wirelessly connects your Mac to Adafruit Bluefruit LE modules for control and communication with your projects. The tool can scan and list nearby Bluetooth LE peripherals with RSSI and Advertisement data. It can send and receive messages via UART monitor in Hex or ASCII format. It can control Arduino Digital, Analog, and PWM pin input and output.
You may want to check out more software for Mac, such as Bluefruit Connect, Bluefruit Buddy or Le Grand Robert, which might be related to Adafruit Bluefruit LE Connect.