The program basically works as a very easy proxy server that allows you to choose if you want it to appear as though you are connecting from the USA or England.
The program's interface will show you at every moment the number of kilobytes per second that you have used and the total megabytes that you've downloaded from the proxy server. This is important because the free version of the program has a download limit of 500 mb per month.
TunnelBear is a very useful app that you can use to watch movies and TV shows that you normally wouldn't be ale to, with just one click.
Requres Android 4.0.3 or higher