WhatsApp is a messaging app that is used by millions of people around the world. It has been used for years to communicate with friends and family, but it can also be used to communicate with businesses and other people. There are a few ways to use WhatsApp on your computer and phone at the same time. The first way is to use the WhatsApp app on your computer. The second way is to use the WhatsApp app on your phone. The third way is to use the WhatsApp app on both your computer and your phone. The fourth way is to use the WhatsApp app on both your computer and your phone at the same time. This way, you can easily communicate with people from both devices at the same time.