The VoIP protocol that allows telephone communication over the Internet has favoured the appearance of systems for making free phone calls. And using it we have AbTalk Call, a calling app with which we can communicate with phones anywhere in the world.
Call more than 200 countries around the world
Its developers say we can call all of them, but wait... there are so many countries? I'd say there are 194 (and I agree with what Google says). But hey, it doesn't matter, that's a hell of a lot of countries and you can call all of them without paying. You can call from the United States to Burkina Faso or from Kiribati to Murcia, to give a couple of examples.
All you need is a data network, which can be 3G or wifi, and the credit provided by the app. And how do you get this credit? Well, you can get it by playing advertisements and carrying out other tasks, without having to dig deep into your pocket. However, if you don't want to eat an endless stream of ads, you can also choose to pay, which will be faster (but no longer free).
The design of the app has been kept simple, minimising the functions of the app: one dialing screen and two other screens to record call history and contact management.