Concept- The concept of the whatsapp was proposed in the u.s.a. by Juon Kuon and Brain Acton.It is cross messiging platform availble on all types of operating system.It was founded in 2009 there after it has been purchased by facebook and runs as an subsidary of facebook.
Layout and Design - The layout and design of whatsapp is amazing with green phone receiver symbol.Divided in three colums of calls chats and contacts which make its use very easy.It has green and white theme.
Features and functions - The whatsapp has an amazing functioning it offers you with free messaging as well as with free calls and recently know with free video call.The messages are ens to end encrypyted and security of the app is amazing.
Usefulness - The whatsapp is pretty much usefulness if used properly in my experience as a student it has helped me alot for clicking and sending notes as well as for receiving notes know it can also generate an PDF which make it more useful.By creating group we can update each and everything.
