AirBeam 2.3 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. We recommend checking the downloaded files with any free antivirus. The actual developer of this software for Mac is Appologics UG (haftungsbeschrankt). The program lies within System Tools, more precisely Device Assistants.
From the developer:
AirBeam allows you to watch on your Mac what the cameras of your iPhones, iPods or iPads see.It receives high resolution video in realtime and with up to 30 frames per second from any number of iPhones, iPods or iPads with a camera on a WiFi network - even from multiple devices simultaneously.
AirBeam turns your Mac into a powerful remote monitoring system.
You may want to check out more Mac applications, such as AirBeam Pro, which might be related to AirBeam.