WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for iPhone, BlackBerry, Android, Windows Phone and Nokia and yes, those phones can all message each other! Because WhatsApp Messenger uses the same internet data plan that you use for email and web browsing, there is no cost to message and stay in touch with your friends.
One of the most popular App WhatsApp add new features in in App its all Voice calling to all Android user, this facility only available with the invite window now open for several hrs.
The report says that many people have been receiving the WhatsApp calling feature on their Android smartphones. To activate the feature, all you need is the latest version (v2.11.561) of WhatsApp (via APKMirror) and a WhatsApp call from someone who already has the feature. After you get the call, you will see WhatsApp’s interface switch from just showing recent chats to three tabs – calls, chats and contacts.
Earlier, the voice calling feature was rolled out to some users, but the invite window was closed before most people could get the feature. WhatsApp still has not announced the voice calling feature officially on its website or the release notes on Google Play. WhatsApp for iPhone still doesn’t have this feature even though a voice calling button appeared in the app some time ago.
This facility is another milestone for WhatsApp, The Whatsapp 1 billion installs via Google Play. The app’s Google Play page now shows that it has between 1 billion and 5 billion installs.