Oct 13, · Nimbuzz Messenger is a free chat and calling app to connect with your IM friends. Nimbuzz Messenger combines the power of internet and smart phone messenger into one, and lets you make free video calls, voice calls, send chat messages, make new friends in chat rooms and share files on any PC/mobile device across popular messengers. Jul 13, · Free messages, Free Calls. Unlimited! Nimbuzz Messenger combines the power of internet and smart phone messenger into one, and lets you send unlimited chat messages and share files (pictures/videos) on any mobile device across popular messengers. Nimbuzz Messenger is available on Windows Phone, Android, iOS, Symbian, Blackberry, Java, PC .