Nimbuzz for PC gives you free and low-cost calls, free instant messaging and puts all your friends in one place. Connect with all your friends at once IM your friends across all popular instant messaging and social networks and have a real chat, in real time, for free. Nimbuzz is already quite popular among mobile platforms, where it has been around for a while. The tool in itself is quite simple, very light on resources and does what it says on the tin. There are no custom backgrounds, animation effects or any other bells and whistles.