Hello dude..
Here is the simple answer for your question
simple login to play store with your mobile
search for whats up app
then download and install the whatsup..
instead of whatsup you can use few
more apps also those are
We Chat
We Chat is an all in one communications app. Always completely free this app allows easy communication between family and friends across the globe. You can enjoy multimedia messaging, group chats, free voice and video calls all with enhanced privacy(secret).
Line
The
Line app offers free calls and messages with absolutely no limits. Line has actually been ranked as the #1 most downloaded app in a massive 52 countries! Communication is enjoyable and convenient and is great to talk to friends or even hold business meetings.
U & Me
U & Me app is said to be the fastest messenger app available for smart phones. Again, there are no limits with this app and if it is speed you want then this download is most definitely for you. You can file share, enjoy group chats generate voice notes, react with instance text and much more.
Instachat
This is the
Instagram Messenger Apps. If you simply love to use Instagram and browse photos, search users and tags and privately chatting with your friends and followers, this is the perfect Messenger Apps for
you. Connect with people all over the globe.