The 1.5.2 version of WSwitch 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. We recommend checking the downloaded files with any free antivirus. The application belongs to Internet & Network Tools. The actual developer of this Mac application is Georgios Trigonakis.
From the developer:
WSwitch is a Mac menu app to control your Smart Switches.
The app can search your local network for devices or you can add devices manually with IP.
You can turn On or Off any device and dim your LED Bulbs.
You can also turn On or Off all devices by pressing a button.
Create shortcuts on any device or group to turn it On or Off with the keyboard.
You can only control the devices on the same local network with your Mac.
You may want to check out more software for Mac, such as AirportTraffic, QuickWho or NetSpot Device Installer, which might be similar to WSwitch.