Without a doubt, it is one of the first applications downloaded when a user acquires a smartphone with data rate. First, because it's totally free ; and second, because using it can save us a lot of money in SMS messages We refer to WhatsApp, a utility that is available for the main platforms (iPhone, Android, Nokia or BlackBerry) and with which we can communicate with others users who already have the application installed.
Its operation is similar to that of an instant messaging client, except that not all of them have a function, known asPush, which will make receive a notification with each new message, even if we have not previously opened the application.
In principle, the WhatsApp application emerged as a response to BlackBerry Messenger , the internal communication system of the mobiles of RIM, so that their customers will save a good amount of money spending short messages through a native messaging system.
To use WhatsApp, just as we say, download the application , fill out a small quick form the first time we open the program and wait to receive an SMS message confirming registration in the service (which has no cost some, as we say).
This form will serve to identify our mobile number, so that we enter the database of the remote system of WhatsApp After this, the application will review our contact book to compare them with their records, automatically adding them to the directory of the application on our phone to all the contacts you know who also use WhatsApp
To use this application, remember, you must have a flat rate of data This is because WhatsApp works like a messaging client, in the style of MSN Messenger, so each message sent involves small upload packets and download that, if you do not have a data plan, will be added to our invoice