Way to compare two different SketchUp files?

I have one SketchUp model that I’m consistently working on, so when I add something new to it I save it as a separate file. I want to be able to compare two of these files. Is there an extension or something that will let me open the two files and it will highlight the differences between the files?

You can upload the main model to Trimble connect and upload various options also.
Then view the multiple models in the web based viewer

Thank you so much! :slight_smile: