http://download.cnet.com/Tor-Browser-Bundle/3000-2356_4-75660251.html -This is link to Download Tor , You can get for on pretty much anything from anything apple to samsung galaxy. It essentially lets you roam the internet from different I.P. addresses. What you MUST USE to go on the dark net , otherwise you can get in some trouble quickly..
"Tor is a network of virtual tunnels that allows people and groups to improve their privacy and security on the Internet
(BSD Revised, Internet, Security, Communications, Utilities)."