We can stay connected with friends and family by using whatsapp.it is very secure . I have been used whatsapp since 8 months. And I feel it is very good app for chatting with friends and family members.
We can send everything . In my whatsapp jokes keep coming. And I enjoy very much. It is also good for student . We can help our classmates or any students. We can share notes through whatsapp. It doesn't consume a lot of data. It also work in poor network, that feature of whatsapp I liked very much.