go-WA is an Android application developed by IndraBlake that allows users to send a message to a Whatsapp number without having to save the contact. This is especially useful for those who frequently communicate with new or unknown numbers. With go-WA, users can simply enter the phone number and send a message directly on Whatsapp, as long as the recipient is also using Whatsapp.

One of the main benefits of go-WA is its simplicity. The interface is user-friendly and straightforward, making it easy to use for anyone. Additionally, the app is free to download and use, making it accessible to all Android users. Overall, go-WA is a useful utility tool for those who frequently use Whatsapp and want to simplify the process of sending messages to new contacts.