Thanks to the internet censorship imposed by governments, many sites are unavailable for access.
Lots of us, therefore, give a shot to find a way to be free from such restrictions.
Psiphon is one of the possible ways to gain that freedom.

Unless you pay, Psiphon drops your speed, and there are some types of traffic that are disallowed.
It uses a currency named PsiCash which is used to pay for what is called as SpeedBoost.
As soon as Psiphon is connected, it will open your web client to visit a web page.

Psiphon has a split tunneling function.
It can exclude traffic from China and websites that are hosted in your country, but nothing more.
There is no option to exclude traffic based on applications, domain names, or IP addresses.
It is still fairly useful, though.
When you open Psiphon, the bonus wont appear until it is connected.
Immediately after it does, the bonus is visible at the left corner of the interface.
Psiphon doesnt force you to go through such hassle.
As for downloading files from torrents, you should consider a VPN instead.