Clarity on License

I have been running CCleaner, the free edition, since at least back to 2009. I'm just getting around to the idea I should support the software and was looking over the license info. It's a bit scarce to say the least. While I haven't purchased yet I'm looking to see which is the least expensive way to continue as I have 5 computers on my home network. I'm also looking at doing this on the 9 computers at my local volunteer rescue squad which includes 4 desktop systems and 5 field Toughbook laptops. Where can I find the information on license info such as how many computers and for how long? I can assume that the license is good for one computer and one year but I can't find that as there is also mention of a multiple license which I don't see in the buying options. Maybe this should be directed to Cleverbridge but I thought forum members might have some info on this as well.

Any suggestions are very welcomed.

Thanks,

Steve

Pro license bought directly from piriform (and not from an authorized disc based retailer) is tied to a single system

Thanks Nergal,

So are there multi-licenses and are all licenses for one year. I couldn't find a stated term length.

Thanks Again

All licenses are one year of free (pro) updates and priority support.