WhatsApp and text messages are both forms of digital communication, but there are several key differences. WhatsApp is an instant messaging app that allows users to send messages, images, audio and video clips over an internet connection, while text messages are short text-only messages sent over a cellular network. WhatsApp messages can include group chats, multimedia, and even voice and video calls, whereas text messages are limited to text conversations. WhatsApp messages are generally cheaper than text messages and are more secure, as they are encrypted end-to-end. WhatsApp is also available on multiple platforms, while text messages are only available on mobile phones.