WhataApp is the best messaging app on andriod. It is a popular application across the world. WhatsApp is the high rated app ( 4.4) on Google Play Store. Approximately over 50, 616, 104 users still used this app. You can also share app, , audio, video, contact, document, etc through WhatsApp Messenger. The layout and design are also suitable for this app. You can stay wallpapers on WhatsApp. You can also chat with people through this app. Only you have a contact which people are you chatting. This app is so reliable on Play Store, Apple Store and Windows both ( phone and destop) . Thanks You