alzhao
6
I assume the Unlocator is just a service of DNS resolve and return you a working IP (or their proxy) of a service (e.g. netflix). I found this article networking - How does Unlocator work? - Super User
So in this level this should works in the router without any problem, except for as @Glitch said, the ISP overrides your dns service.
I don’t have a Unlocator account, but I assume they asked your real IP address. Your account will be bound to your IP address so that when you use the Internet from your IP address it works. It means if you move to another location you have to change your IP in your Unlocator console.
I checked the price seems it is not too cheap compared to vpn.
For vpn service, you can choose one from our compatible list and try. I think it is better to just try 7 days or 1 month first to check if they satisfy your needs. You may need to pay several dollars more but it worth to have a chance to try.