This is one of best app to communicate with anyone all around the world. In this app you can chat with your friends, uncle, aunt, parents, etc, . You can even send videos, pictures, voice notes, etc, . This app has also got any additional feature of calling anyone at anytime. But when you want to call your friend you need to have net package and even your friend needs to have a net package. if not you wont be able to call your friend or anyone. Therefore this becomes a disadvantage also. But overall the app is really good if you have the internet access.