HotSpot Shield is an application that is designed to allow censor-free Internet usage, regardless of location. For example, VoIP software applications like Skype are banned in some areas of the world, or Hulu videos are not visible to people outside of the United States. For these particular individuals, installing HotSpot Shield is the difference in being able to access that content without the restrictions of geography.
HotSpot is able to accomplish this magnificent feat of Internet magic by encrypting all the communication to and from the requesting computer. There is a cap of a 5GB transfer limit, and one of its drawbacks is the rather large advertisements that the application displays.
More importantly however, this technology is also leveraged to protect users from snooping individuals on a public network. Essentially, HotSpot Shield creates a VPN (Virtual Private Network) within which it operates, keeping the user’s IP address hidden entirely.