Open in WhatsApp

Open in WhatsApp is an app that allows you to send WhatsApp messages to any phone number, even if the number is not in your list of contacts. Using the app is as simple as entering the phone number in question, along with its international country code, and pressing a button. If the number is on WhatsApp then a new chat will instantly open.

One of the most interesting ways you can use Open in WhatsApp is to check whether or not an unknown phone number is on WhatsApp. But this isn't its only use. You can also open a chat with yourself on WhatsApp or send messages to other users without needing to add them to your contacts list.

Open in WhatsApp is a very useful app for regular WhatsApp users that allows you to keep chatting with other users without needing to add them to your contacts list.