The only difference of what you get for the pricing is the length of time that you can get updates for the program. So if you get a one year license you get all the features of both LB and BB for one year on as many PCs that you personally own. After one year you can still use BigBox with all the features that it had at that time you will however no longer be able to update the program or BigBox will no longer work. The price is in US dollars so you will have to convert that to whatever that is in Canadian dollars.