The 5.2.1 version of LiveActionClient 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. LiveActionClient for Mac lies within Internet & Network Tools, more precisely Network tools. The actual developer of this software for Mac is LiveAction. We recommend checking the downloaded files with any free antivirus.
From the developer:
LiveAction is an application-aware network performance management plus QoS control tool. It offers a fast, simple, and cost-effective way to monitor and control application performance leveraging Cisco capabilities. It can monitor the end user experience of web applications deployed in any cloud over any public network, from the traditional network to the state-of-the-art SD-WAN.
You may want to check out more Mac applications, such as AbleFtp7, OTR Proxy or Hotline, which might be related to LiveActionClient.