WhatsApp, There is a lot of room for many improvments

As we all know, since his launch, WhatsApp changed the way we send messages between us, by giving us a new way to send and receive messages but in an unlimited number, all that without having to login or out since the app is in our personal phone just like the other sms apps.

After installing the WhatsApp app we are welcomed by a some think like a one-time registration and log in screen where we have to insert our usual phone number and then sit back, relax and let the program do his job. As a first look to this functionality, the interface is very clean, clear, and comprehensive design, Straight after the account activation or the first launch of the app, we find our self in front of the chats screen and to send the first message to a contact, you just have to select him from the phone's contacts list or right from the buddy list wich makes it very easy and simple to use from many side. All what I've said can't lead us to an other judgement other than it is a user-centered design.

Even of that all, there's still a lot of room for getting this product even better, like optimizing the app's algorithms because when we get a lot of messages stored on the device, then we start to see a lot of lag and some problems in the way the app behave, but on the look way, we just need a better looking like the one on Messenger, and why not adding the famous chat heads functionality, and finally WhatsApp, please we're still waiting for that calling functionnality. Please WhatsApp