It is quite convenient to interact with friends, families and even customers. You can make a WhatsApp video or audio call over the Internet for free. In addition, WhatsApp allows users to share files up to 256 WhatsApp users at once. You can send photos, videos, messages and other files to keep in touch. WhatsApp is an instant messaging and calling app for Android, iPhone, Mac, Windows PC or Windows phone users. What Is WhatsApp and Its Features to Make a Call Free Download Free Download Learn more 1.