WhatsDirect is an Android application that allows users to send messages to any WhatsApp number without having to save it in their contacts. This free app is a useful tool for those who need to communicate with people they don't know or want to keep their contact list clean.

The app is straightforward to use, requiring only three simple steps. First, enter the phone number of the person you want to contact; next, type your message, and finally, tap the send button. The app will then take you to the official WhatsApp app, where a chat window with the given number is created.

It's worth noting that this app and its developer, Crazy Developers tk, are not associated with WhatsApp. Therefore, users should follow WhatsApp's terms and conditions while sending messages through the WhatsDirect app. Overall, this app is an excellent solution for those who need to send messages to unknown numbers without saving them in their contacts.