I used Facebook messenger from last 2 year. I use this daily for chatting with my friends after day by day using of it I realized this messenger takes very much data usage for running as compare to WhatsApp messenger. And after 5 month of using I also realized there is nothing new things in update version. And it also use much more RAM of your Mobile phone therefore your Mobile phone is going to hang. Finally after uasage of 2 year I quite it and uninstall it. So ultimately this messenger is not user friendly therefore I suggest dont use this .