WhatsApp is a messaging app that is used by millions of people all over the world. It has been around for two years and it has already become one of the most popular messaging apps in the world. It is free to use and it can be used on both Android and iOS devices. There are a few ways to send messages on WhatsApp without adding contact information. One way is to use the “Message” button in the top left corner of the app. Another way is to use the “WhatsApp Groups” feature. This feature allows you to create groups of people and send messages to all of them in one go. Another way to send messages on WhatsApp without adding contact information is to use the “Text” button in the top right corner of the app. This button allows you to send messages as text messages. You can also use this button if you want to include a picture or video in your message.