The name of the application is shorthand of two words ‘what’s up’ and ‘app’. In 2009, Whatsapp Messenger was developed by two veterans of Yahoo named Brain Acton and Jan Koum. How to Download and Install Whatsapp Messenger.It only requires the person you are sending messages is also have a Whatsapp account on his device. You can freely share even your personal data as the app offers end-to-end encryption and no one can watch your data except the person you have sent. We can use it for any type of device along with multiple new features including Web messaging, voice calls, a group calling option, and a lot of other such groundbreaking features. A little time before, you have to pay 99-cent as an annual Whatsapp subscription, but nothing to pay now. The plus point is that it is entirely free of charge at present. Time has changed now, simply pick up your phone, press the number of your loved ones, and start talking. No doubt, contacting each other is quite difficult and we have to wait for some special events to meet with our loved ones. Specifically, if you are abroad, you are considered to be in space, as it takes months to send a message to you. Earlier, the connecting process was very slow and limited, and expensive also. It gains worldwide popularity while being used by 2B people in around 180 countries. WhatsApp Download Apk for Android is the official instant messaging app from Meta.