The 3.3.1.17 version of Load Sensor Calibration Tool for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within System Tools, more precisely Device Assistants. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free software for Mac is L-Acoustics.
From the developer:
Load Sensor Calibration Tool is an app that allows you to calibrate LA4X amplified controllers. Load sensors must be calibrated to obtain reliable measurements when using enclosure check on the amplified controllers. Calibrating must be done after replacing a power module or the DSP board.
You may want to check out more Mac applications, such as Dirac Live Calibration Tool, FLIR Tools or Make My App - Mockup Tools for Developers, which might be similar to Load Sensor Calibration Tool.