A free program for Android, by AppsTrendy.

There is no need to download and install multiple apps to do something simple like make a voice call or send a text message. With GB Unseen Offline for WhatsApp, you can do all that with just one app. This means you will not need to spend time and effort installing and configuring the app. You can even do all that from your mobile phone.

How can I use GB Unseen Offline for WhatsApp?

To use the app, you need to first install it and give it the necessary permissions. Then, you can use it to make a voice or video call. You can even send and receive images and videos. If you want to receive messages, you need to enable the notifications.