Anyone can download the client and register as a user without having to pay anything. One of the most important features of this tool, that has brought in so many users, is its price: it's free. Free communications with phones and other computers
This tool was designed back in 2003 in Estonia and was purchased by Microsoft in 2011. One of the applications that has contributed the most to make the text, voice and video over the Internet protocol, aka VoIP, so popular is definitely Skype.