1Password has their own service free to sync passwords among multiple machines called my1Password ( https://my.1password.com/ ) but in looking at it I see it is by invitation only. I got my invitation right after I bought 1Password, so maybe purchasing it is the ticket to use it.... would be worth asking about as it works very smoothly.
I would read the license agreement and judge for yourself. I have 2 licenses - I bought the first and got a second as part of a bundle, but I've had no problems using only one of the licenses on both my systems.