How is Pro version different---more explanation needed

How is Pro version different---more explanation needed

I have the free version of Wyse Pocket Cloud for my Android devices (Samsung Galaxy S II and Samsung Galaxy Tab (7"). I am brand new to the world of accessing a remote computer by an Android device. I tried a couple of other programs (Remote Web Desktop and 2X Client RDP/Remote Desktop) and promptly removed them after installation because the was an impenetrable wall of technical jargon and registration questions that no average person would be able to answer. The Wyse Pocket Cloud was simple to get and not bad to install. So far I like it a lot---love being able to access my computer from afar via my Android device.

I am curious about the differences between the free version of the Wyse Pocket Cloud and the Pro version. On my Android smartphone I have seen (under Support) a list of the differences but need more explanation of the terms.
1. advertisements: I have not noticed any advertisements pop up when using it so far; where are the advertisements?
2. Under multiple connections, Support says the free version is "Limited to one" and the Pro version is checked. Limited to one what---access to one computer? access to one computer at a time? using only one Android device (though the program be downloaded on others) to access a given computer? Something else?
3. Technical Support: free is "forum only" whereas Pro is checked. What does the checked mean---how is it different from forum only? Is it faster? more specific to an inquiry? Something else?
4. pinch to zoom: that seems to be something I can do on my Android on the free version but Support has that feature unchecked under free and checked under Pro. What is the difference here?
5. "3rd party integration support (URL scheme)": free no, Pro yes; what does that mean?
6. "RDP sound with auto bandwith mode": free no, Pro yes; what noticeable difference would there be in having that feature?
7. "auto-fit and extended resolutions for RDP": free no, Pro yes; what is that and what could one do with it that one could not do without it?
8. "VMware view Support": free no, Pro yes; what is that---how would that make a difference in having remote access to the computer?
9. "Secure tunneling for VNC Auto Discovery": free no, Pro yes; what is that--how would it be better?
Maybe some of things are for advanced enterprises with hundreds of people accessing hundreds of computers and have no application to individual users---or maybe I just lack the technical expertise to know what these terms are but perhaps someone could explain these differences between free and pro so that an everyday Internet user (but not a technical guru) would have at least a rough idea of what the significance of each difference is.
Thanks.