I'm upgrading from 1Password 3.8.22 to the most recent 5.x (Actually I have OS X 10.11.1 and I can still open 1Password, but I can't use it with my browsers and from time to time it crashes)
I'm going to install it on my macbook pro, but I use other two Macs and I'd like to have 1Password installed on these Macs too.
May I use 1Password with the same license installing it on three different Macs?
Moreover I'll have to keep synced the (three) databases: does it mean that I have to use iCloud? Can I sync without using iCloud?