can install TeamViewer 10 & 11 on Macintosh at same time?

Teamviewer 11 is installed onto a Macintosh via an installer application. I think Teamviewer 10 is erased as the new version is installed.

And that's not counting any resources in System Folders (e.g. "/Library/") that get installed or overwritten.

I know they can't run at the same time, but does anyone know if Teamviewer 10 & Teamviewer 11 can co-exist on a Macintosh at the same time?