You can download SoundSwitch using the links below.
Before you can use SoundSwitch, you will need to create an account but following this link
You can download the latest versions below:
macOS: https://cdn.inmusicbrands.com/soundswitch/files/SoundSwitchInstaller.pkg
Windows: https://cdn.inmusicbrands.com/soundswitch/files/SoundSwitchSetup64.exe