Browsing around restricted sites is at anyone's reach if we use a program that creates a VPN or virtual private network. Hola allows us to do so without having to pay a subscription fee by installing browser extensions on your Mac.
Why should I be browsing with a VPN?
Basically to leapfrog restrictions when accessing webs and services blocked by IP. We can pretend to browse from a different location, avoiding censorship or simply safeguarding our privacy when browsing.
Explore the Internet privately and without censorship.
You should also take into account that services like Hulu, Netflix (despite blocking users that make use of a VPN, if detected) or Pandora don't offer their services in all countries. Therefore, we could use Hola to access them.
The Mac version isn't a real application as in the case of Windows or Android, but browser extensions for Chrome and Firefox.