We added both to our software service center that is managed by IT. Users are given the option to download if they want but administrator access is not needed to download or run.
I am running a test of the Avecto software that IT is using to control what can be installed on employee PCs. I just tried to upgrade Jive for Office and Jive for Outlook and received a user account control request to log in as an administrator. It looks like I'll need to have these add-ons added to the list of "safe" software installs.