Viber SMS does not have any charges but you do need to have a data connection present. Most telecoms charge a subscriber to be able to use SMS, though the actual amount may vary depending on the plan you have. The biggest advantage of Viber SMS over regular SMS is in the charges that they incur. The message is sent to Viber servers and then forwarded to the recipient.
In contrast, Viber SMS uses the internet via a data connection. Regular SMS relies on the cellular network in order to transport the message from the sender to the recipient. But the main difference between SMS and Viber SMS is in how they get the message across. It serves to send and receive messages just like SMS. Viber is actually a smartphone application that is currently available on Android and iOS devices. But with the proliferation of smartphones, it’s facing stiff competition from services like the Viber SMS. SMS, or more commonly known as texting, is probably the most economical way of communication.
