Quick Example of Digital Communication Whatsapp is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. It is available for iPhone, BlackBerry, Android, Windows Phone and Nokia, and uses the same internet data plan that you use for email and web browsing. All of the contacts on your phone that have Whatsapp can be found in your contacts section, and can be messaged via the app. Though as well as just basic messaging, WhatsApp users can also create group chats, send each other unlimited images, video and audio messages. I find that Whatsapp is very useful, especially when you are out and you need to send someone a picture message, as my phone would charge me to do it via SMS. It also enables me to keep in touch with multiple people using the group chat feature. Sometimes I even use Whatsapp for work purposes. So that video, audio and image files that would be beneficial to me can be sent to me efficiently.