I bought a 10-license pack, plus Norton Backup with 25-GB online storage, from Norton's website for $89.99. I think their licensing wording could be improved, but I used chat with a very friendly agent who explained the licensing, took me through the purchase AND installation process.
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These 10 licenses can be used on Windows PCs, Macs, and Android phones and tablets.
So far, I've installed 2 licenses on Windows 7 desktops, 1 license on a Windows XP desktop, 1 license on a Windows 7 laptop, 1 license on a Samsung Android tablet, and 2 licenses on Samsung Galaxy S phones. All installations were much easier than in the past.
I still have 3 licenses that I can use on new equipment I'll buy. If I get rid of a device then I can return its license to the license pool and reuse it. $90 for 10 licenses plus Norton Backup is a far better deal than in past years.
Also, if you take a look at their most common customer Q&A, you'll see that it is VERY easy to turn off the auto-renewal program. I like having auto-renewal, but if I ever change my mind I can turn it off. Their Q&A also says they will notify you well in advance of charging for a renewal and you can decline then, too.
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Contact Symantec/Norton online chat and ask for help before purchasing. And tell them to do a better job explaining how their licensing works!