VST3 is now available in SoundID Reference
Yes, with the latest SoundID Reference version 5.2.0 or later the VST3 plugin is included in the installer. The latest version can be downloaded from here.
All plugin formats are automatically installed as part of the full installation process. By default, the plugin will be installed here:
C:\Program Files\Common Files\VST3\SoundID Reference VST3 Plugin.vst3
/Macintosh HD/Library/Audio/Plug-Ins/VST3/SoundID Reference VST3 Plugin.vst3
Custom installation location
If needed, you can Customize your install location and/or select the components you want to be installed. Simply, click on Customize during the installation, and select the components needed. To change the location, click on Browse and select the new installation path.
NOTE! Custom installation location is available on Windows only.