The main difference between WhatsApp and regular texting is that WhatsApp uses the internet to send messages and calls, rather than the traditional cellular network. This means that WhatsApp messages don’t use up a user’s text messaging (SMS) allowance, and that users can send messages and make calls to anyone in the world, regardless of what country they live in or what mobile phone network they use. Additionally, WhatsApp offers a number of other features such as group chats, file sharing, video and voice calls, and end-to-end encryption for added security.