Whats is the most trending app now a days am using whatsapp since 4years and the fastest way to communicate and more effeiciently and it have features like audio and video calling too so that we can communicate all over the world with single click we can share our photos and videos and locations and documents too with our comtacts and all these features can be used absalutely free of cost. I loved it I prefer you to install it and have fun. Recent update of photo and video status was also simply amazing.