It is the best cross platform messaging app in the world right now even.More than 1 billion people use this app. For this app basically we need to be connected to internet.1. This bring benfit that u can stay in touch with u r dearset one and family, friends, etc just by getting their contact number.2.this supports in sending and reciving of varoius media likewise : photos, text, etc.3.
This even is most secured and no third party couldn’t acess it in such way it is protected.4. Through this app u can basically call or have video chat with u r needed person he might be any where in the world, even u can send u r exact location to u r friends.5. You can retrive or back-up your chats when u have linked it to google account.Finally acording to my opinion its the best one and easy one which is simple to use.