Beyond similarities of these both networks; lies number of differences. A web based free applications for instant messaging and voice over internet protocol (VOIP) has a lot to cover to ease day to day communication. Skype was launched in August 2003 whereas Google Talk in August 2005. Both offers a telephony option which is much cheaper if compared to other sources. Google talk has a good security level and requires lesser bandwidth in comparison to Skype. On the other hand, Skype can work in more than one operating system like Window, Mac OS, PSP, Android, Xbox One, Linux etc.