click chat app allows you to open chat with anyone on Whatsapp without save his/her number on your phone as we all know that we can't open chat with someone without save the number on your contact but with click chat you can do it with easiest way just by writing the number of your friend or anyone you want and click open chat and a conversation with the number you wrote will appear and you can send message.

Also click chat allows you to open conversation with yourself and as we also know that Whatsapp doesn't allow to open chat with yourself in whatsapp but you can do it with click chat .